I would like to see a small DMT pipe, it must have a hollow void about the size of a small marble, with a tiny hole to the side to put crushed crystals in... the hole leading to the stem should be on the side rater than the gravitational bottom, as the stuff melts and runs all over.
This bulb part should be nice and thick as it will be directly heated to a low temp and then needs to maintain this temp for a little longer than say a thin bit of glass. also the neck and void should have a gradual taper, a hole with a straw forms a cold spot which makes the stuff condensate out of the air again. Try blowing air out of a small hole between your lips on the back of your hand... see cold.. the princial an aircon works on. We do not want that.
I guess it can also be a clever system to make weed pipes that deliver cool air, blow a few bubbles along the straw, so it forms a string of chamber,pipe, chamber, pipe sections.