Homemade one-shot gun.
Ingredients: Pencil, candle, matches, ball bearing, string

Take a pencil and wrap it over and over with string, leaving a small hole at the end for lighting.
Light a candle and cover all the string (apart from the hole) in wax, leave to set. Slide pencil out and what you have is a string/wax cylinder, sealed at one end with a touch-light hole.
Take at least a box of matches, maybe 1.5 and pound the heads onto a table, scraping together all the Phosphorus. Then pour into the tube and use the pencil to pack it down.
Shove in a ball bearing.

Use bricks or books or something to wedge it in place, DON'T hold it in your hand for fuck sake. Get a long match or a stick or something to light it from a distance. It will self destruct and probably send firey string and wax everywhere but it'll put that ball bearing through an oil drum (apparently), it's aiming it that's the bitch.

And that's how you kill someone in prison.
( Maffers I flow kinda strange like Spina Bifida footprints, Sat 11 Aug 2012, 0:11, Reply)