Mini Challenges!
New inventive challenges posted each week
262
Busy plants
Invent a gadget that would let you care for your plants when away from home
Check out some other challenges
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83
Sunny side
Make a sunburst cardboard sundial clock
486
Dolphin speak
Invent a dolphin communicator
549
Heat
Invent a device that generates heat
50
Munch machine
Draw a wacky machine to help you eat your lunch
28
Flight of the bumblebee
Design flying machines inspired by birds and insects