Mini Challenges!
New inventive challenges posted each week
511
Garden device
Invent a device that tends the garden
Check out some other challenges
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28
Flight of the bumblebee
Design flying machines inspired by birds and insects
11
Pet-ercise
Draw a machine to exercise a pet indoors
392
New thing
Convert an item into a completely new one
103
Under pressure
Invent something that can reduce stress
549
Heat
Invent a device that generates heat