Mini Challenges!
New inventive challenges posted each week
515
Colour sorter
Invent a colour sorting machine
Check out some other challenges
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492
Communicate
Invent a way to communicate without speaking
100
Leftovers
Invent a machine that recycles your leftover dinner
166
Snowman in summer
Invent a way to make a snowman last all year
103
Under pressure
Invent something that can reduce stress
97
Story teller
Invent a story telling device