Original DIY designs from truss bridges to rubber band race cars, helicopters and rockets.
Explore 30 cool projects or browse by category.
Rubber Band Helicopter
Powered by rubber bands, this helicopter is easy to build and can fly straight up over 20ft.
Suggested ages: 7+
Science Fair Experiment Guide
Propeller Powered Car
This rubber band-powered propeller car design is optimized for speed and distance.
Suggested ages: 9+
Rubber Band Car
A high-performing rubber band-powered car design. Big wheels provide traction and distance.
Triangle Truss Bridge
Stronger than a square-shaped bridge, this truss bridge design will hold extremely heavy loads.
Simple to build with a big payoff, the slingshot car zips across the floor surprisingly fast.
Easy Hydraulic Machine
Build a simply hydraulic mechanism, then customize its function however you'd like.