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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448
Seaweed
Invent an extra special use for seaweed
387
Space travel
Invent a new way to travel in space!
152
Hedgehog hotel
Design a hedgehog hotel, with all the comforts it needs
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
548
Lucky
Invent a way to turn your luck around