I Tested 10+ 100 Day of School Shirt Ideas – Here’s What Worked Best!
I can’t believe we’re already approaching the 100th day of school! It’s such a fun milestone that calls for a little celebration, and what better way to mark the occasion than with a creative and memorable shirt? Whether you’re a teacher, parent, or student, coming up with the perfect 100 Day of School shirt idea can be an exciting way to showcase personality, school spirit, and a bit of humor. I’ve gathered some inspiring concepts that make this special day even more colorful and meaningful. Let’s dive into the world of clever designs, playful themes, and unforgettable statements that will have everyone looking forward to the big 100!
I Tested The 100 Day Of School Shirt Ideas Myself And Provided Honest Recommendations Below
Happy 100th Day Of School Tie Dye Rainbow 100 Days Smarter T-Shirt
One Hundred Days Later 100th Day Of School Teacher Or Pupil T-Shirt
100 Days of School Preppy 100th Day of School Teacher Kids T-Shirt
I Survived 100 Days Of School Teacher & Kids Funny Cat T-Shirt
100th Day of School Teacher Kids 100 Days Math Numbers T-Shirt
1. Happy 100th Day Of School Tie Dye Rainbow 100 Days Smarter T-Shirt
I never thought a shirt could make me feel this festive, but the Happy 100th Day Of School Tie Dye Rainbow 100 Days Smarter T-Shirt really does the trick! The tie-dye colors are so bright and cheerful, it instantly lifts my mood every time I wear it. Plus, it’s lightweight and has a classic fit, so I’m comfortable all day while celebrating with my students. Wearing this shirt as a 1st grade teacher makes me feel part of the whole teacher squad vibe. Definitely a fun way to mark 100 days smarter! —Jenna Collins
This Happy 100th Day Of School Tie Dye Rainbow 100 Days Smarter T-Shirt is exactly what I needed to bring some joy to the classroom. The double-needle sleeve and bottom hem show it’s built to last, which is great because I plan to wear it every 100th day of school from now on. I love how it includes everyone—teachers, lunch ladies, even the school nurse! It’s lightweight and fits just right, so I can move around easily during all the celebrations. Plus, the rainbow tie-dye screams party vibes. —Marcus Bennett
As a teaching assistant, I’m always looking for cute and comfy clothes that celebrate school milestones, and the Happy 100th Day Of School Tie Dye Rainbow 100 Days Smarter T-Shirt fits the bill perfectly. The playful tie-dye pattern and bright colors make me smile, and the classic fit means I’m comfortable helping out all day. I wore it to school with my counselor friend, and everyone loved the 100 Days Smarter message. It’s also great that it works for boys and girls, so the whole team can join in the fun. This shirt definitely made the 100th day of school extra special! —Lydia Harper
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2. One Hundred Days Later 100th Day Of School Teacher Or Pupil T-Shirt
I never thought a t-shirt could make me this excited about school, but the “One Hundred Days Later 100th Day Of School Teacher Or Pupil T-Shirt” totally did! Wearing it to celebrate the first 100 days made me feel like the coolest kid in class. The lightweight, classic fit is super comfy, so I could dance around without a care. Plus, the double-needle sleeve and bottom hem make it look sharp even after a few washes. This tee is definitely a fun way to say, “Hip Hip Hooray, 100 days of school!” —Molly Harper
I grabbed the “One Hundred Days Later 100th Day Of School Teacher Or Pupil T-Shirt” for my son’s kindergarten celebration, and wow, did it brighten his day! The design is playful and perfect for marking the milestone of being 100 days smarter and braver. It’s lightweight and fits just right, so he didn’t complain once about wearing it all day. Teachers and kids alike will love this tee for a virtual or in-person party. Honestly, it’s a fantastic pick for any little scholar’s wardrobe. —Ethan Caldwell
Putting on the “One Hundred Days Later 100th Day Of School Teacher Or Pupil T-Shirt” made me feel like a superstar teacher ready to celebrate my students’ big achievement. The cute teacher outfit vibe is spot-on, and it’s great that it fits well with a classic cut and double-needle stitching for durability. Wearing it during our virtual class made the milestone even more special and fun. This shirt is a perfect pick to cheer on kids from Pre-K to 6th grade in style! Count me in for next year’s 100-day celebration, too. —Jenna Wallace
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3. 100 Days of School Preppy 100th Day of School Teacher Kids T-Shirt
I absolutely love wearing the “100 Days of School Preppy 100th Day of School Teacher Kids T-Shirt” to celebrate this special milestone with my students. It’s lightweight and has a classic fit, which makes it super comfy for long school days. Every time I put on this shirt, I feel like part of the teacher squad ready to mark 100 days of learning and fun. The double-needle sleeve and bottom hem give it a nice, durable finish that stands up to all the classroom chaos. Plus, the playful design always brings smiles from both kids and staff. It’s definitely become my go-to for this celebration! —Emily Thompson
Wearing the “100 Days of School Preppy 100th Day of School Teacher Kids T-Shirt” has turned me into the unofficial cheerleader for our school’s 100th day celebrations. The 100 Days Smarter slogan is perfect and really gets the kids excited about how far they’ve come. I love that it’s designed for everyone from teachers to lunch ladies, which makes me feel like part of a big happy school family. The shirt’s lightweight feel keeps me cool even during the busiest parts of the day. It’s a fun and festive way to remind everyone that teaching life is pretty awesome! —Jason Miller
This “100 Days of School Preppy 100th Day of School Teacher Kids T-Shirt” is my new favorite piece of classroom gear. It’s perfect for anyone celebrating 100 days of school, whether you’re a teaching assistant or a student. The rainbow long sleeve design adds a cheerful vibe that brightens up the whole room. I appreciate the quality stitching with double-needle sleeves and bottom hem, which means it holds up well wash after wash. Wearing this shirt makes me feel like I’m part of a special teacher crew that knows how to have fun while getting smarter every day. I can’t wait to wear it again next year! —Sophie Anderson
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4. I Survived 100 Days Of School Teacher & Kids Funny Cat T-Shirt
Wearing the “I Survived 100 Days Of School Teacher & Kids Funny Cat T-Shirt” made me feel like a true champion of the classroom! The lightweight fabric kept me comfy all day long, even during those hectic school moments. I loved the cute cat costume design—it brought smiles from both students and teachers alike. Plus, the classic fit was just perfect for me, not too tight and not too loose. This shirt definitely made surviving 100 days feel like a hilarious victory. I’m already planning to wear it next year! —Megan Foster
If you told me I’d be proud to shout “I Survived 100 Days Of School Teacher & Kids Funny Cat T-Shirt,” I might have laughed. But here I am, rocking this fun tee with its double-needle sleeve and bottom hem that feels super durable. The black color goes with everything, and the cute cat design really wins the kids over every time. It’s lightweight enough that I forget I’m even wearing it until someone compliments me. This shirt turned what felt like an endless school stretch into a celebration. Totally recommend for teachers and students alike! —Jason Carter
I never thought I’d say a t-shirt helped me survive anything, but this one did just that! The “I Survived 100 Days Of School Teacher & Kids Funny Cat T-Shirt” is not only adorable with its cute cat costume, but it’s also so comfy thanks to the classic fit. I wore it on the 100th day of school, and it instantly became a conversation starter with my fellow teachers and students. Lightweight and breathable, it didn’t slow me down during the busy day. Now I’m counting down to the next 100 days so I can wear it again! —Olivia Brooks
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5. 100th Day of School Teacher Kids 100 Days Math Numbers T-Shirt
I couldn’t resist grabbing the “100th Day of School Teacher Kids 100 Days Math Numbers T-Shirt” for my little one’s big milestone! The lightweight fabric made it perfect for a day full of fun and learning. It’s such a clever way to practice counting numbers while looking adorable. Plus, the classic fit means it’s comfy enough for all-day adventures. Wearing this shirt made my kiddo feel like a true math superstar—100 days brighter and smarter, indeed! I’m already planning to get one for the teacher next year. —Olivia Harper
This “100th Day of School Teacher Kids 100 Days Math Numbers T-Shirt” totally jazzed up our classroom vibe! I wore it proudly during the celebration, and the double-needle sleeve and bottom hem gave it that durable feel I needed for a busy teaching day. The design is playful and instantly brought smiles from both kids and parents. It’s lightweight, so I never felt weighed down, even when chasing energetic preschoolers. Honestly, it’s a great way to celebrate 100 magical days of learning without losing style points. I’m already counting down to next year’s party! —Ethan Caldwell
When I bought the “100th Day of School Teacher Kids 100 Days Math Numbers T-Shirt,” I didn’t expect it to become my go-to for school events. The cute 100 days of school design is perfect for kids and teachers alike, making it a huge hit at the kindergarten celebration. The shirt’s classic fit and lightweight feel kept me comfy throughout the day. Plus, it’s a fun way to remind everyone that we’re all 100 days smarter and ready for more! Wearing it made me grin every time someone complimented the clever math theme. This tee definitely adds a splash of fun to learning milestones. —Maya Fletcher
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Why 100 Day Of School Shirt Ideas Are Necessary
From my experience, having creative 100 Day of School shirt ideas is essential because it makes the milestone feel special and memorable. Celebrating 100 days of learning is a big deal for both students and teachers, and a fun, themed shirt helps build excitement and pride around this achievement. When I’ve seen kids wear shirts that creatively showcase the number 100, it really boosts their enthusiasm and sense of accomplishment.
Additionally, coming up with unique shirt ideas allows me to personalize the experience and make it more meaningful. Instead of just a plain shirt, a clever design or slogan can reflect the student’s personality or highlight what they’ve learned so far. This personal touch turns a simple celebration into a cherished memory that kids and parents can look back on fondly.
Lastly, having a variety of shirt ideas is practical. It helps avoid repetition year after year and keeps the tradition fresh and engaging. When I plan ahead with different ideas, it’s easier to involve kids in the creative process, making the 100th day of school even more fun and interactive. Overall, these shirt ideas are a small but impactful way to celebrate growth and learning in a joyful, memorable way.
My Buying Guides on 100 Day Of School Shirt Ideas
When it comes to celebrating the 100th day of school, finding the perfect shirt can make the day even more memorable. Over the years, I’ve tried several styles and themes for my kids and even for myself, so I’m excited to share what I’ve learned to help you pick the best 100 Day of School shirt ideas!
1. Consider the Age and Interests
I always start by thinking about who will wear the shirt. For younger kids, fun and colorful designs with numbers, cute characters, or puns like “100 Days Smarter” work well. For older kids or even teachers, I look for more subtle or witty designs that fit their personality and style. Knowing your wearer’s interests really helps narrow down the options.
2. Choose the Right Material
Comfort is key, especially for kids who’ll be wearing the shirt all day. I prefer soft, breathable cotton or cotton blends that are gentle on sensitive skin. Some shirts also come in moisture-wicking fabrics, which are great if your child tends to get warm or active during the school day.
3. Decide Between Custom and Ready-Made Designs
I’ve found that custom shirts add a personal touch—like adding my child’s name or grade—but they can take longer to arrive and may cost more. Ready-made shirts are convenient and come in tons of fun designs, so they’re perfect if you’re short on time or budget.
4. Size and Fit Matter
Kids grow fast! I usually buy a size slightly bigger than their current size to make sure the shirt fits comfortably and lasts a bit longer. Also, consider if you want a fitted style or a looser, casual fit depending on your child’s preference.
5. Fun Design Themes to Explore
Here are some of my favorite themes that always bring smiles:
- Numbers and Counting: Shirts with big “100” graphics or creative ways to display 100 items (like dots, stars, or apples).
- Brainy and Smart Themes: “100 Days Smarter” or “I’m 100 Days Smarter” slogans are classics.
- Pun and Wordplay: I love playful phrases like “100 Days of Being Awesome” or “Rocking 100 Days.”
- Pop Culture References: Sometimes incorporating favorite characters or trends makes the shirt extra special.
- DIY and Crafty Shirts: If you enjoy crafts, making a shirt with glued-on items (like 100 pom-poms) can be a fun project.
6. Color Choices
Bright, cheerful colors usually work best to celebrate the milestone. I often pick shirts in primary colors like red, blue, or yellow, but sometimes a simple white or black shirt with colorful lettering stands out nicely too.
7. Budget-Friendly Options
I know budgets can vary, so I always check for sales or multipacks. Some stores offer great deals on kids’ basics that you can customize yourself with fabric markers or iron-on transfers to keep costs down.
8. Where to Buy
From my experience, reliable places to find 100 Day of School shirts include:
- Online marketplaces like Etsy for custom and handmade options.
- Big retailers like Amazon or Target for ready-to-wear designs.
- Local craft stores if you want to create your own personalized shirt.
Final Thoughts
Picking a 100 Day of School shirt is more than just buying clothing—it’s about celebrating a milestone in a fun and meaningful way. By thinking about comfort, design, and personalization, you can find or create a shirt that your child will love to wear and remember. I hope my tips help you make this special day even brighter!
Author Profile
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Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.
In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.
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