This is a very simple project to make. All the components came from my local hardware store. I already had an air compressor at home, but if you don't have one, then you could use a hand bicycle pump.
Step 1: Materials
1 x Length of Pressure PVC Pipe (I used a 1 metre x 40mm piece)
The 'pressure' bit just means that it's thicker. you can use the thinner stuff if you want, but it might break
2 x Pressure Caps
Glue (plumbers glue or other strong glue)
Air Compressor or Bicycle Pump
Step 2: Method
Step 2: Jam the other cap on the other end as hard as you can!
Step 3: Destruction!
Just make sure not to fire the cap at something hard or metal because i made that mistake, and as you can see, it does not have good results!