Homemade gravity bong : r/StonerEngineering
Tip: a 9/16"-1/2" socket is perfect for gravity bongs, you wont have to bother with any more lids! : r/trees
GravityBong
Does this waterfall bong waste a lot of weed compared to a normal pipe or is it more efficient? : r/saplings
Anyone seen any gravity bongs like the Studenglass? : r/chinaglass
My homemade glass gravity bong. : r/StonerEngineering
Any way to upgrade a gravity bong? : r/StonerEngineering
Cart + Grav Bong = Outer Space : r/StonerEngineering
Ghetto gravity bong using a 1/4" socket as the bowl, and a garden hose nozzle as the holder : r/StonerEngineering
Do yourselves a favor and make a Gravity Bong, 100% efficiency and you only need a pinch of bud + it's super easy to make! : r/StonerEngineering
Got tired of everybody smoking on bongs in this Reddit when I can't buy any because I live with a Jehovah witness, so I made one, what do u think? : r/weed
Cfx gravity bong : r/vaporents
Gravity bongs are great : r/GravityBong
Making a simple waterfall bong with a bottle and the herb simply won't light : r/StonerEngineering
First Homemade Glass Gravity Bong : 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
Seth Rogen's Gravity bong : r/trees
Update to my post yesterday about my homemade gravity bong with an ice mouthpiece : r/StonerEngineering
Made a gravity bong with a wine bottle and a glass stein! : r/StonerEngineering
Our most recent creation “Glass Gravity Bong” : r/StonerEngineering
Gravity bong hit : r/trees
Homemade Waterfall Bong Guide (x-post from r/trees) : r/StonerEngineering
My first homemade tool, a gravity bong! How'd I do? : r/StonerEngineering
How could I do a DIY of this Stundenglass Gravity Bong? : r/StonerEngineering
5 gallon percolated gravity bong 👍🏻 : r/StonerEngineering
