Mini Challenges!
New inventive challenges posted each week
510
No hands
Invent a hands-free vehicle
Check out some other challenges
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500
Time travel
Invent a time-travelling machine
163
Reindeer jumper
Design a jumper for a reindeer
394
Super football
Invent a very special football
138
The sun collector
Invent a way to charge a device using energy from the sun
28
Flight of the bumblebee
Design flying machines inspired by birds and insects