Geared-up Gadgets Pink and a play eye shadow

and a play eye shadow palette

Step-by-step instructions

Collect them all

The secret behind these fascinating machines is a power source called a mainspring

Manufactured with the highest quality super soft fabrics for over 20 years

Geared-up Gadgets Pink and a play eye shadowBuild five fun gadgets and learn about gears and transmissions. Create a helicopter model with a rotor that spins using a rubber band powered motor. Assemble a spinner toy that you wind up to launch a fast spinning top. Make a centripetal force machine that flings its arms outward at high speeds. Build a hand mixer that demonstrates a gear train. Construct a cool aircraft launcher that flings a model vehicle across the room on a zipline. A 28 page