[John Jorsett]

Yeah. Glass Coke bottle + Jetex pellet + plastic champaign bottle stopper. Loud boom. Lots of little pieces of broken glass flying through the air. Oh, and no BATF agents swarming over the neighborhood.

Or Drano + aluminum foil. We used to use it for generating hydrogen to make our own balloons, but sealing it in a bottle would result in an explosion from the pressure.

[mylife]

calcium carbide and water + bottle = acetalyne at high pressure going kablooey