Mini Challenges!
New inventive challenges posted each week
500
Time travel
Invent a time-travelling machine
Check out some other challenges
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549
Heat
Invent a device that generates heat
22
Sleepy time
Draw the most AMAZING, MAGICAL BED in the WORLD
107
Challenge yourself
Draw or make your own challenge maker machine
192
Speak in code
Invent a code and write your own secret message
28
Flight of the bumblebee
Design flying machines inspired by birds and insects