Make a plane painting machine to draw a design on your airplane.
Build a wearable device that will detect when your body moves.
Make a machine that uses a fluid to move and can lift at least 10 pennies.
Make a satellite that can hold a cup of water and does not leak during a bumpy rocket launch.
Build a machine that makes sound waves by vibrating itself or the air around it.
Build a water filter that can clean dirty water.
Make a machine that can jump up more than 3 feet.
Build a box that only you know how to open and is safe from hackers.
Build a system that controls the movement of material and shuts off automatically.