When I was in elementary school, my farther brought home some calcium carbide. I don't remember the details, but somehow he put it under an old coffee can and lit it off. The coffee can flew pretty high. Impressive for a kid! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .