Originally posted by Ripsnort:For a really good non-flammable, but still lethal explosion, take chunks of dry ice, put them into a 2 litre plastic Pepsi bottle, add alittle water, and toss it in a garbage can. Don't be anywhere near it for the next 5-30 min. A friend did this at work once after a picnic. It ripped a metal garbage can apart into two pieces and scattered leftover food over a 200 sq.ft area.