Mini Challenges!
New inventive challenges posted each week
511
Garden device
Invent a device that tends the garden
Check out some other challenges
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454
Animal sounds
Invent a way to translate animal sounds
549
Heat
Invent a device that generates heat
476
Decorations
Invent something to help put up Christmas decorations
360
Ocean saver
Invent a machine for ocean health
28
Flight of the bumblebee
Design flying machines inspired by birds and insects