As a youth, many many years ago, my friend and fellow trouble maker and I made a 'tater gun. We used a hair spray can recovered from a garbage can for propellent. We lived next to a factory that threw away bunches of light bulbs. We discovered that with the proper charge our gun would launch a standard light bulb 60+ yards. We thought it was hilarious to land one close to an unsuspecting victim. We never got caught.