First time I ever got stoned was with these guys who were best friends with my friend's older brother. They had a gravity bong that was made from the shell casing of a missile that they got from the military base. Somehow, you were supposed to fill it with smoke and then drop a bowling ball into the cylinder and it would force the smoke into your lungs. It sounded like a truly horrible idea to me. Also, their other good friend had just died from cancer and they decided it'd be a good idea to turn his lung respirator into a water bong.