What's the most ghetto/cheap cannon you've ever made?

[PinHead]

Mine would probably have to be the one that I made at work the other day while I was bored. I found a scrap piece of 3/4" ID steel tubing about a foot long, so I heated up the end and melted it into the cap of a powerade bottle, then sealed it with good ol' duct tape. Ignition was done with a small hole in the end of the bottle, using flame from a lighter, or a red hot tip of welding wire. Fuel is about 3 drops of acetone from a bottle I "borrowed" from the paint prep area, and ammo is paper and masking tape wads (breech loaded with eh cap off). Good for trying to hit other guys in my area with a satisfying "thwoomp".

[hi]

i made one out of a cardboard mailing tube. the projectil stoper was a pencil and the ignition was a hole that i stuck a match in. i launched soda cans about 50 feet.

i also wrapped it in duct tape.

[SpudBlaster15]

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

[f.c]

i once a made a combustion from coke cans and toilet rolls.

[mopherman]

I make a tiny combustion out of a rolled up peice of paper that was tristed up on one side.

[chimera]

I just posed a cheep cannon i built a while ago. I think i could do better tho or worse how ever you want to say it.
http://www.spudfiles.com/forums/duck-ta ... 10432.html