Plastic Explosives Ingredients: * Potassium chlorate (or sodium chlorate) * Petroleum jelly (Vaseline) * a big bowl * a rolling pin or something similar Procedure: * Spread out the chlorate crystals and crush them very fine with the rolling pin. * Mix 9 parts chlorate with 1 part petroleum jelly in the bowl until it's a uniform mixture * Store in a waterproof container. Needs a detonator of some sort to set it off. I haven't tried this myself, but it's from the Department of the Army's "Improvised Munitions Handbook," and they say they've tested it and it works.