Mini Challenges!
New inventive challenges posted each week
464
Dream hotel
Design your dream hotel
Check out some other challenges
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178
Bump!
Invent something that stops you from hurting yourself when you fall over!
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
549
Heat
Invent a device that generates heat
535
Trophy
Design a Wimbledon trophy
137
Breath energy
Invent a way to light a house using your breath