Randy you need to build all of us one of these

[chrisheltra]

http://www.metacafe.com/watch/379930/potato_gun_tennis_ball_launcher/

[Jeff]

Holy shit ! Man we could all have some fun with that !

[LXtasy]

That and of course one of these also.


http://youtube.com/watch?v=E48KHDX33js


more information and video

http://www.milbestlight.com/cannon.aspx

[DolSVT00]

A few of the "mischevious" guys at work have made some of those but for smaller projectiles example: take a 6" long piece of welding filler metal and stick it into a ear plug, then stick that through a 1/2" tube that has a larger 3" tube with a valve welded inbetween them. Put 200psi of air in the 3" tube then open the valve on the 1/2" tube.

end result is a welding rod that will penetrate through a 5 gallon paint can

[chrisheltra]

I used to have a potato gun that was a lot of fun. Back in the day