No noise invention
Draw an invention that cancels out background noise!
Check out some other challenges
Speak in code
Invent a code and write your own secret message
Invent an exciting, fun or unusual way to travel that uses less energy
Draw an invention that would be helpful to a person who’s shy
Invent a way to light a house using your breath
Maker Challenge - Musical instrument!
Invent an intriguing musical instrument