Make room for
a little wonder.
One small challenge. A fresh reason to spend time together. Get a new marble run idea each week, plus a roundup of our latest builds.
- 01 / A clear starting point
An idea you can try with the kit you already own.
- 02 / A twist to make it yours
Change the height, add a turn, or turn it into a friendly race.
- 03 / Our latest builds
The newest YouTube experiments, all in the same email.
No scores to chase. No perfect-parent projects. Just build, test, laugh, and try again.
Meet Your Next
Big Idea.
Wild names. Real engineering. A fresh challenge with useful tips and one completely unnecessary joke.
From chair-leg slaloms to Skyscraper Showdown, every builder gets room to try their own twist.

Can your marble
make all
three turns?
Start small. Count the successful finishes. Let each builder choose one thing to change, then test the run again.
Bonus twist: Can you make the same run work with a lower starting point?
The three-turn
trick shot
Can you get a marble into a cup after three changes of direction?
- Build a track with three turns. Start with a low, stable base.
- Place a cup at the finish. Roll the same marble five times.
- Change one thing. Can you beat your first score?