1. 空氣砲彈、空氣槍 (Air Cannon or Airsooka Air Gun) -A great demonstration of the energy that can be stored in waves.
The Air Cannon uses a vortex of air for ammunition.
Its unique shape creates a stable toroidal vortex. Pull back the flexible membrane, release and the invisible wave front of air can hit a target 20 feet away!

2. Airzooka air gun
Launch a full air assault without ever leaving the ground with the 'Airzooka air gun'.
Airzooka is a hand held fun gun that fires a ball of air with enough power to mess up a persons hair, ruffle their shirt or scatter papers from a distance of 20 feet away.
By pulling back the membrane and releasing - a shock wave of air is sent hurtling at your target.
Requiring no batteries or electricity, Airzooka works with an elasticated air launcher.
Pull back and release the launcher like a catapult, firing the ball of air out of the air gun.
Because it shoots air,
you never run out of ammo!