I didn't want to read all 5 pages, so if anyone has had the same idea I'm sorry.
I haven't actually made it yet, but in the very near future I'm going to make a bong out of a small gas can.
Back in the day crunk rappers drank their "crunk juice" out of gas cans, so I want to smoke dank out of one.
I figure one or two downstems put in the side of gas can and you can suck smoke out of the part the gas comes out of.
It shouldn't be too hard.