Barrel Water Collector
Make wine into water (sort of).
Drill bit
Dead Drop Device
A hollow bolt hides secret messages.
Lensless Microscope
Inside your webcam is an imager chip with thousands of sensors, each much smaller than a hair. Replace the lens with an LED, place a sample directly on the the chip, and you have a lensless microscope capable of streaming live video of plankton or other microorganisms to any display.
Medicine Man Glider
Build a 5-foot-wide airplane inspired by 1930s designs.
Periodic Table Cabinet
A collections cabinet in the shape of the periodic table.
Gyrocar
Add a motor and a track wheel to a toy gyroscope to make it run nonstop and perform tricks.
Kustom Tonka Trucks
Turn a classic toy into a hot rod for kids of all ages.