Perpetual two-chamber self-contained gravity bong, inspired by /u/Thehyperninja's vortex connector. : r/StonerEngineering
Gravity Bong Blast-Off v.9 : r/saplings
Gravity bongs are great : r/GravityBong
Homemade gravity bong bubbler, the ghetto way : r/StonerEngineering
Me and my frients made a gravity bong/hot box! (x-post from r/trees) : r/StonerEngineering
Homemade glass gravity bong works great : r/StonerEngineering
The Perfect "Percolating" Gravity Bong : r/trees
Waterless gravity bong my girlfriend bought me. As a group we named him Flint. : r/trees
GravityBong
My homemade glass gravity bong. : r/StonerEngineering
Homemade gravity bong : r/StonerEngineering
Water Filtered gravity bong failed attempt #1. Anyone else care to give it a try? Detail in comments. : r/StonerEngineering
Wanted to share my homemade gravity bong! I underestimated it lol : r/Milking
First attempt at a diy stundenglass gravity bong : r/StonerEngineering
Mold in gravity bong.. how to clean properly? : r/trees
A cheap easy gravity bong/bucket that'll hit you like a truck. Aquarium tubing, eye dropper , steel wool , Pepsi bottle and your good to go. Ill post a link of it
Thoughts on my design? It's a reusable, reversible waterfall bong, so that you don't have to refill it every time. Would it work? : r/StonerEngineering
Nothing too complicated, D.I.Y Gravity bong? I had a bowl piece, but tin foil is functional if you're open to it. : r/StonerEngineering
My go-to diy whenever I travel: the mini gravity bong. : r/StonerEngineering
Homemade Gravity Bong : r/StonerEngineering
How to make a gravity bong : r/StonerEngineering
Any way to upgrade a gravity bong? : r/StonerEngineering
My first homemade tool, a gravity bong! How'd I do? : r/StonerEngineering
