Mini Challenges!
New inventive challenges posted each week
553
Noise!
Invent a way to make a noise!
Check out some other challenges
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28
Flight of the bumblebee
Design flying machines inspired by birds and insects
424
Paper plane
Design a special paper plane
187
5-a-day
Invent a tool that will help you to get your 5-a-day
363
Unique you!
Invent a way to show off your uniqueness!
549
Heat
Invent a device that generates heat