Mini Challenges!
New inventive challenges posted each week
192
Speak in code
Invent a code and write your own secret message
Check out some other challenges
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538
Barbie car
Design a Barbie convertible
326
Egg hunt
Invent a device to help create an egg hunt!
549
Heat
Invent a device that generates heat
336
Hair refresh
Invent a tool that makes washing your hair easier
28
Flight of the bumblebee
Design flying machines inspired by birds and insects