Mini Challenges!
New inventive challenges posted each week
433
Asteroid rubble
Make something out of asteroid rubble
Check out some other challenges
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321
Land and sea
Invent a vehicle that can travel over land and sea
420
Dinosaur
Design your own dinosaur
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
160
Ear muffs
Design ear muffs with a special extra function
548
Lucky
Invent a way to turn your luck around