pvc piping whould be slightly better then a toilet paper roll but never a substitue for a real glass piece
pass the chicken Reviewed by pass the chicken on . Gravity bong, parachute, steamroller, vaporizer These are a few of the things I've made (or friends have made). My experience with the gravity bong is limited since I got busted in the house right after I was using it. I think it got thrown out. It got me so ripped I can't even remember everything that happened that day. I have gotten the parachute to work well a few times, but I find it takes a lot of patience that I don't have. And you have to hold it all funny between your knees so I think its a bit of a hassle. My brother-in-law Rating: 5