Mini Challenges!
New inventive challenges posted each week
216
Nature energy
Invent a gadget that produces sustainable energy using nature
Check out some other challenges
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Next
549
Heat
Invent a device that generates heat
409
Dog day
Invent something for a dog
103
Under pressure
Invent something that can reduce stress
295
Party entrance
Invent a funny way to say hello to guests arriving at a party
2
Secret door
Imagine a secret door in your home that leads to a magical place. Draw the door and the place