Sports activity books and apps for tiny fans and the people who love them.
Walk through the kids' aisle — you'll find unicorns, dinosaurs, and rainbows. Walk through the sports aisle — you'll find adult jerseys and memorabilia. There's almost nothing for the 5-year-old who knows every player on the team.
Heartball is for the kid who wears a jersey to dinner. The kid who wants to draw their favorite player. The kid who's learning their first trivia and won't stop quizzing their parents — or their uncle. Tiny fans deserve their own brand.
Twenty-five pages of jerseys to color, mazes to solve, trivia to test, and sticker charts to fill. Instant PDF — print and reprint forever.
Reusable digital coloring book with three difficulty modes, sports trivia bonuses, and a parent dashboard. No ads. No in-app purchases. Just creativity.
The magic of paint-with-water — but with the players and teams your kid actually loves. Reusable, mess-free, no ink, no crayons.
I'm not a parent. I'm an uncle. And before you wonder if that disqualifies me from building a kids' brand — hear me out.
I grew up memorizing stats off the back of the newspaper sports page. I've played sports my whole life — still do, on a softball league, plus golf and tennis when I can sneak them in. I collect jerseys. I'm a real, lifelong fan.
Then came Niece #1 and Niece #2. Right now they're 2.5 and 1 — too young for half the things I want to share with them. But I already know: I want to be the uncle who passes this on. The jerseys. The stats. The Saturday-morning excitement of game day.
So I went looking for sports stuff at their level. Activity books. Coloring pages. Apps. Something — anything — that took kids' sports fandom seriously.
There was almost nothing. Sports stuff is built for adults. Kids' stuff skips sports entirely.
So I started building what didn't exist.
If my nieces fall in love with sports the way I did — amazing. And if they don't? That's amazing too. Sports teaches good habits and good values no matter where the passion eventually lands. I'll be rooting for them either way.
Someday I hope to be a dad too. Until then, I'm Uncle Toe Knee — and I'm building Heartball for every tiny fan, in every family.
❤️ Uncle Toe Knee
Nothing harvesting your kid's attention or data. Just play.
Open-ended coloring that builds fine motor skills and focus.
Start with the printable. Add the app only when ready.
Every product designed by a real human who loves the tiny fans in his life.
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