This baby has undergone several different revisions (mainly because I kept breaking parts of it), but I got 'er to a point where I'm very happy with it. Nearly airtight (the rubber ring between the mouthpiece and glass isn't very large), this bubbler works surprisingly well. Glass salt shaker for the body, glass downstem from a weird vase from Goodwill, large rubber cork, mouthpiece from my very first pipe, and brass bowl (hose adapter/plumbing parts). Still haven't thought of a name for her, though. Suggestions are welcome. http://i.imgur.com/teq216X.jpg http://i.imgur.com/3eWOk0W.jpg