Potato cannons are way cooler.
2 feet of 4" pvc stepped down to 5 feet of 2 inch-
assemble 12 of them in a cluster.
thread a spark plug into the breach of each one.
wire up a jaguar distributer cap to a car battery...
load potato, squirt in some propane or other flamable fuel..
crank the cap.....
bang..bang..bang..bang..bang..bang..bang..bang..ba ng..bang..bang..bang..
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