Go and buy a CO2 tank used for paintball, and what is called a remote (a tube with an on/off feature) and a box. Poke a hole in the box and turn on the gas and they go to sleep. Like the other method except in the tank the CO2 won't go bad until it is empty then it is three bucks to refill it. My 9oz lasts me around a months worth of gasing. then you can get it refilled!


~mike