Mini Challenges!
New inventive challenges posted each week
490
You've got mail!
Invent a new way to deliver mail
Check out some other challenges
Prev
Next
71
Energy Savers
Invent an exciting, fun or unusual way to travel that uses less energy
181
Space hair
Draw an invention that will help you to look your best in space
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
549
Heat
Invent a device that generates heat
425
Bathroom
Draw a bathroom invention!