Mini Challenges!
New inventive challenges posted each week
231
From garden to space!
Draw an invention that will launch you into space from a garden!
Check out some other challenges
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490
You've got mail!
Invent a new way to deliver mail
549
Heat
Invent a device that generates heat
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
433
Asteroid rubble
Make something out of asteroid rubble
108
We've got the power
Invent something powered by solar energy