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
PrevNext
549
Heat
Invent a device that generates heat
524
Phone free
Invent a way to minimise phone usage
272
Flood help
Draw an invention that will help stop someone’s house from getting flooded
1
Keep your distance
Draw an invention to keep people two metres apart
332
New backpack
Draw a cool new backpack made from an old item