Reply #12: Ever tried Aqua net?

[Xipe Totec]

The hair spray?

One time we took a full can of the stuff and, with a nail, punched a hole on the bottom to let the propellant out. What's left is the resin and pure alcohol. We dropped the full can on a little fire we started with wood sticks and other debris...

The bottom of the can is an almost perfect rocket engine bell...

When the alcohol started boiling it came out the back end, ignited, and the can took off like a real rocket. It skipped down the street for a couple of blocks before it ran out of juice. No guidance, no nav, no flight control, no range safety officer. Just a wild rocket going down a neighborhood street, and a bunch of kids ducking for cover...