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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138
The sun collector
Invent a way to charge a device using energy from the sun
394
Super football
Invent a very special football
549
Heat
Invent a device that generates heat
238
Speedy washing up
Draw an invention that would help make doing the washing take less time
214
Catch a meteorite
Draw an invention that would catch a meteorite before it hit earth