Mini Challenges!
New inventive challenges posted each week
210
Mars house
Invent your own house on Mars
Check out some other challenges
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28
Flight of the bumblebee
Design flying machines inspired by birds and insects
467
Future car
Invent a super unique car of the future!
490
You've got mail!
Invent a new way to deliver mail
192
Speak in code
Invent a code and write your own secret message
307
Safe house
Invent a home that is very safe and can move anywhere!