Mini Challenges!
New inventive challenges posted each week
432
Help a friend
Invent something to help a friend
Check out some other challenges
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28
Flight of the bumblebee
Design flying machines inspired by birds and insects
350
Secret Message
Invent a way to send a secret message
549
Heat
Invent a device that generates heat
492
Communicate
Invent a way to communicate without speaking
99
Eco trip
Invent a new way to travel that is good for the environment