Airzooka

Launch a full air assault without ever leaving the ground with the Airzooka. The Airzooka is a hand held fun gun that fires a ball of air up to 20 feet. Laugh with amusement as, seemingly from nowhere, you are able to mess up a persons hair, ruffle their shirt or papers from across the room. Requiring no batteries or electricity, it works by an elasticized air launcher. Pull back and pull the trigger, and you will be firing a ball of air out of the gun. Assemble your Airzooka in seconds and enjoy blowing away anybody that gets on the wrong end of your Airzooka.

Here's the best part, because it shoots air, you will never run out of ammo.