thank you everyone. your input is very helpful. if you think of anything else i would be very thankful if you could share it with me. thanks again.

-SwissSpudGunner

So I need some ideas to turn my spud gun into a science experiment. I have a combustion cannon. I use hairspray as a fuel.The gun is made out of schedule 40 PVC, PVC primer and cement. Here it is. 2) The spud gun uses 1.5-in.-dia. pipe for the barrel. It is connected via a 1.5 x 4-in. bushing and a ...