Mini Challenges!
New inventive challenges posted each week
168
Space exercise
Invent a new way to exercise in space
Check out some other challenges
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548
Lucky
Invent a way to turn your luck around
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
107
Challenge yourself
Draw or make your own challenge maker machine
94
All the world's a stage
Design your own theatre or stage to perform on
549
Heat
Invent a device that generates heat