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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1
Keep your distance
Draw an invention to keep people two metres apart
103
Under pressure
Invent something that can reduce stress
138
The sun collector
Invent a way to charge a device using energy from the sun
481
Calendar
Invent a feel-good calendar
443
School run
Invent something to make the walk to school more fun