I Almost Sent My Kid to School in a Plain T-Shirt—Big Mistake!
So there I was, the night before the 100th day of school, realizing I had absolutely nothing planned. Every other parent seemed to have it all together—Pinterest-level outfits, custom shirts, and me? I was staring at my kid’s plain t-shirt like, “Maybe I can just tape 100 stickers on this and call it a day?” Spoiler: That’s a terrible idea.
If you’ve ever forgotten or panicked about a themed school day, don’t worry—I got you. Here are 11 ridiculously easy, fun, and “why-didn’t-I-think-of-that” 100 Days of School Shirt Ideas for Boys that will have your kid looking like the coolest dude in class (without you losing your mind).
1. 100 Lego Pieces – Because Who Doesn’t Love Lego?
- Get a plain shirt and hot glue 100 tiny Lego bricks onto it.
- Bonus points if you spell out “100 Days of Awesome!” with them.
- My son LOVED this one because, well, Lego is life.
Why It Works:
It’s colorful, interactive, and impresses both kids and parents. Plus, your child gets to proudly count each piece and tell his friends, “Yeah, there are exactly 100.”
📸 Picture This: A bold blue t-shirt covered in vibrant Lego bricks, with a grinning kid pointing to his masterpiece like he just built the Millennium Falcon.
💡 Product Recommendation:
👉 LEGO Classic Creative Bricks Set – Use extra pieces to actually play with after school!
2. 100 Googly Eyes – Because Staring Contests Are Fun
- Grab a plain black t-shirt and stick 100 googly eyes all over it.
- Bonus: Every time your kid moves, the eyes wiggle. Instant comedy.
Why It Works:
This one gets ALL the laughs. My son walked into class, and kids were immediately mesmerized. Plus, it’s easy (and cheap).
📸 Picture This: A black shirt completely covered in googly eyes, making your child look like a hilarious, friendly monster.
Budget Binder To LOVE
💡 Product Recommendation:
👉 Self-Adhesive Googly Eyes – No glue needed, just stick and go!
3. 100 Race Cars – Speed into the Celebration
- Use iron-on patches or fabric paint to create a “racetrack” on a t-shirt.
- Stick 100 tiny toy race cars along the path.
- It’s basically Fast & Furious: Kindergarten Edition.
Why It Works:
If your kid is obsessed with cars, this will make him feel like he’s wearing a Hot Wheels track.
📸 Picture This: A red t-shirt with a winding race track and colorful cars zooming around the front and back.
💡 Product Recommendation:
👉 Mini Hot Wheels Set – Perfect for the shirt AND after-school playtime.
4. 100 Superhero Logos – Unleash the Hero Within
- Use stickers, fabric markers, or iron-on superhero symbols.
- Your kid becomes the ultimate superhero collector.
Why It Works:
Boys LOVE superheroes, and this one makes them feel like they have every power imaginable.
📸 Picture This: A blue t-shirt covered in Batman, Spider-Man, and Hulk logos, with a cape attached for extra flair.
💡 Product Recommendation:
👉 Superhero Logo Stickers Set – No need to draw them by hand!
5. 100 Dinos – Jurassic Shirt, but Make It Fashion
- Stick 100 tiny dinosaur stickers onto the shirt.
- Add “100 Days of Roarsome Learning!” if you’re feeling punny.
Why It Works:
Dinos are always a hit, and your kid will be the king of the Jurassic classroom.
📸 Picture This: A jungle-green t-shirt covered in tiny, colorful dinosaurs with your kid pretending to roar.
💡 Product Recommendation:
👉 Dinosaur Sticker Pack – Stickers that stay put!
6. 100 Stars – Because Your Kid is a Star
- Use glow-in-the-dark star stickers for an intergalactic vibe.
- It doubles as a nighttime glow-in-the-dark pajama shirt.
Why It Works:
Space-themed anything = instant cool points.
📸 Picture This: A navy-blue t-shirt shining bright in the dark with glowing stars.
💡 Product Recommendation:
👉 Glow-in-the-Dark Stars – Fun for shirts AND bedroom ceilings.
7. 100 Pokéballs – Gotta Catch ‘Em All!
- Draw or iron-on 100 Pokéballs for the ultimate Pokémon trainer look.
Why It Works:
Pokémon NEVER goes out of style.
📸 Picture This: A yellow shirt with 100 Pokéballs leading to a giant Pikachu in the middle.
💡 Product Recommendation:
👉 Pokémon Iron-On Transfers – Makes designing super easy.
8. 100 Stickers – Let Your Kid Go Wild
- Give your kid 100 stickers and let them create their own masterpiece.
Why It Works:
It’s 100% customizable, and you get to see their creativity in action.
📸 Picture This: A t-shirt covered in sharks, robots, and random smiley faces.
💡 Product Recommendation:
👉 Sticker Variety Pack – Endless choices!
9. 100 Sports Balls – Game On!
- Print or iron-on 100 tiny sports balls for a sporty theme.
Why It Works:
Perfect for the little athlete who wants to wear his favorite sports.
📸 Picture This: A white t-shirt with footballs, soccer balls, and basketballs covering every inch.
💡 Product Recommendation:
👉 Sports Ball Sticker Set – So easy to use.
10. 100 Buttons – Crafty but Cool
- Sew or hot glue 100 colorful buttons all over the shirt.
Why It Works:
It gives serious texture and personality.
📸 Picture This: A bright blue shirt bursting with colorful buttons like a funky patchwork quilt.
💡 Product Recommendation:
👉 Assorted Buttons Pack – Tons of colors and sizes.
11. 100 Handprints – Classmates Can Join In!
- Have classmates stamp their fingerprints or handprints onto the shirt.
- Makes an awesome keepsake!
Why It Works:
It’s sentimental and celebrates friendships.
📸 Picture This: A white t-shirt with tiny, colorful handprints covering it.
💡 Product Recommendation:
👉 Fabric Paint Set – Safe, washable, and vibrant.
Why These Ideas Matter
Listen, the 100th day of school is a big deal to kids. A fun shirt makes them feel special, confident, and part of something exciting. Plus, you get to avoid last-minute panic (like me).
Final Thoughts: From “Oops, I Forgot” to “Parent of the Year”
Now, instead of frantically searching for ideas the night before, you’ve got 11 awesome 100 Days of School shirt ideas ready to roll. Pick one, get a little crafty, and watch your kid walk into school like a legend.
