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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549
Heat
Invent a device that generates heat
486
Dolphin speak
Invent a dolphin communicator
219
Song bird
Invent a safe place for the regent honeyeater birds to meet and learn to sing together
545
Easy morning
Invent something to make mornings easier
162
Snowy hills
Invent boots that would help you to walk up the snowiest hills