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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97
Story teller
Invent a story telling device
1
Keep your distance
Draw an invention to keep people two metres apart
103
Under pressure
Invent something that can reduce stress
407
Monitor earth
Invent a way to monitor earth
28
Flight of the bumblebee
Design flying machines inspired by birds and insects