So I just got an idea while surfing the forums. What if you had a 3' piece of pipe with contacts on the inside, connected to a switch that powered a stun gun. Here's the idea: you can make a cannister, filled with your choice of propellant, and a plastic cap (one that removes by pressure), and two s...

Koolaid Bursts bottles in a 2" with some type of liquid inside for weight.

What about taking that idea a step further and making the rocket fit outside AND inside the barrel. This would ensure a pretty good seal, and would go quite a bit further, I'd think.

I would recommend a 100,000 volt stun gun to anyone. I shock myself to entertain people, so I'm used to it. Although, getting shocked without knowing it's going to happen is a totally different feeling...but still fun!