Mini Challenges!
New inventive challenges posted each week
413
Sibling love
Invent something to annoy your little brother or sister
Check out some other challenges
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549
Heat
Invent a device that generates heat
548
Lucky
Invent a way to turn your luck around
312
Get gardening
Invent a way to get gardening done much quicker
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
103
Under pressure
Invent something that can reduce stress