Mini Challenges!
New inventive challenges posted each week
140
Drum energy
Invent an instrument that makes energy when you play it
Check out some other challenges
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549
Heat
Invent a device that generates heat
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
413
Sibling love
Invent something to annoy your little brother or sister
370
Rocket man!
Design a pair of glasses for Elton John!
91
Rummy
Invent your own pack of playing cards