MR. Tallahassee, What volume are you talking about and for which suggestion? Please forgive my ignorance. I have done little research on how to build one. Some of these things that I have seen look pretty complicated to build. I would be good with using something small to make the noise but I was wa...

Also. I am looking for something that I could fire instantaneously.

Thanks. Are there plans somewhere to make a large scale carbide cannon? All I have seen of those is the little "Big Bang" cannons on ebay. How big do you have to build the thing to get a bang that would be similar to a real cannon?

My two boys are playing high school football in the Texas panhandle and our mascot is a pirate. I have been looking to build or purchase a cannon to use when the team scores. I am looking for something that is loud but safe to use in a high school setting. I am not looking to shoot any projectiles. ...