[Spartan151]

Okay. I've been following this for a couple days. I figured that a t-shirt cannon would be a nice idea for our team, since at least half of us are graduating this year. This leads me to ask some questions before attempting a build.

Question 1: In regards to the air tanks, what kind of material could I use for pressurized air storage?

Question 2: Is it possible to use a high-pressure rated tank or such for a "rifle-style" t-shirt cannon without the need of having to carry around a storage tank?

Question 3: On the barrel part, since I DON't plan to use PVC for storage, can I use a strong duct tape-wrapped PVC pipe for just a place to load the t-shirts?

Question 4: What is the best way to design one that is safe? (We don't have a huge budget, so buying one is a bit of a problem.)

Question 5: What kind of sprinkler valve/solenoid should I use and where can I get one from?