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Mini Challenges!

New inventive challenges posted each week

513

Handy

Invent something hand-sized
Random challenge

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196

Happy invention

Invent something that would make your friend feel happy
378

Independence day

Invent something that celebrates your independance
107

Challenge yourself

Draw or make your own challenge maker machine
549

Heat

Invent a device that generates heat
481

Calendar

Invent a feel-good calendar
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