Repeating X Bow - Latch

Paper Airplane Launcher - Springs

Rocket Revolver - Compressed Air

Disc Launcher - Flywheel

Coin Spinner - Ratchet

Drawing Machine - Linkages

Air Ball - Coanda Effect

Boomerang Car - Worm Gear

Domino Catapult - Projectile Motion

Duck Game - Belts

Trip Wire - Momentum Transfer

Mirror Bank - Mirrors

Strobe Light Animator - Light Refraction