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Mini Challenges!

New inventive challenges posted each week

551

Ghost

Draw an invention for a ghost
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108

We've got the power

Invent something powered by solar energy
189

Cell talk

Invent a new way for cells to talk to each other
103

Under pressure

Invent something that can reduce stress
548

Lucky

Invent a way to turn your luck around
549

Heat

Invent a device that generates heat
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