Mini Challenges!
New inventive challenges posted each week
505
Wind
Invent something that uses wind
Check out some other challenges
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514
Scarecrow
Invent a super scarecrow
549
Heat
Invent a device that generates heat
363
Unique you!
Invent a way to show off your uniqueness!
300
Litter picker
Invent a fun way to collect litter on train platforms
28
Flight of the bumblebee
Design flying machines inspired by birds and insects