Took the heaters from an entire case, put it all in a 1L gatorade bottle wrapped in 3/4 roll of 100mph tape, tossed in some water, used the last 1/4 of the tape to seal the cap. Chucked the bottle down the hill we were posted on, and thought it fizzed out.
45min later it went off. Sounded like an arty-sim without the whistle

I once scraped off the tips of 19 packs of MRE matches, and packed the powder into the tabasco bottle. Toched it off with another match. Shattered the windshield out of my truck (M1025), took a chunk of aluminum off the lower windshield frame, and shot fragments of glass into my right wrist, and my friends neck.
Teamleader should have NEVER said, "you can't make a firecracker out of a tabasco bottle..."