@bapee to make the bowl i did this, it may be confusing after all, i'm pretty baked. but yeah! lets go. first off you gotta have the tube, and some clay. and a bowl peice, anyways i went around my house looking for something that fit inside of the tube, like a cap to a bottle or something, i found this one cap to a nasal spray thing that kept it from spraying it out, it's a cone shape it fit perfect. i rammed it in one end of the tube you want the bowl on, i then poke a hole on that nasal spray lid and put the bowl peice inside that hole, then i covered it all up with clay. does that make sense? it's pretty simple, to be honest. and today i got 3 good milkshots from my little beast, it's amazing.
For the most part. The tube leading from the bottle, or what ever you use, to the glass tube should NOT be submerged. You'll just start to draw water, and get no where. I say maybe go buy a drop stem from a local headshop that your bowl will fit into. If it's just a glass stem bowl with a rubber grommet to create the seal, the taper at the top may be wide enough to just drop into a water bottle, and not fall through the mouth piece. If it's a glass-on-glass bowl, you may need to put the drop stem through the cap first. Seal this with some putty, or Playdough for originality, stick your bowl in there, and you've got yourself a little bubbler.
Nah man smoking through a metal piece isnt necessarily safe. There are some specific metals that are safe to smoke but aluminum (which that looks to be) is not.
@empofhemp I see what you mean, thanks for the advice i might try it out. @goalie i understand this, the guy asked if it was copper though, so i simply told him it wasn't.