I made a balsa wood airplane. It's all homemade except the propeller, the rubber band, and the tissue paper. Itâ€™s taken a lot of tinkering to get it to fly, but thereâ€™s nothing more fun than watching it soar!
This is a home-made adjustable set of race tracks for Hot Wheels cars to race. Except for the Hot Wheels track, the rest of the materials are common household items. Come see how you can make your own!
It's a motion-activated jack-in-the-box featuring a 3D-printed Mario that also plays the Mario theme song. The box is arduino controlled with an RC servo, a ping sensor, and a piezoelectric buzzer for sound.
This portable Air-Conditioner is powered by a 12-v battery and a Peltier , a device that gets hot on one side and cold on another side. Heat sinks, miniature air ducts, and fans are arranged to produce a cooling breeze for the user.