Mini Challenges!
New inventive challenges posted each week
350
Secret Message
Invent a way to send a secret message
Top secret!
There are many ways to send secret messages! Whether you choose to communicate in code or use the element of surprise, think up a way to get your message across in a top secret way...
Check out some other challenges
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263
Hot car
Invent a tool that can be used to keep your car cool in hot weather
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
337
May the fourth
Draw a star-themed invention!
279
Fantasy Skate Park
Design your own fantasy skate park
322
Rocket power
Draw a rocket that has everything you need for a space vacation!