I am currently trying to build a homemade bong. I have already ordered, glass tubing, glass tube cutter and glass drill bits. All i need now is something that I can use to make a bowl at the end of the stem. GLASS ONLY. That is the reason I have so much trouble, I just don't like the look of the plastic bic pen attached to a socket. (call me a perfectionist). If you have any ideas or suggestions on where to get one or what to use, I am trying to stay relatively cheap, but I may venture into spending some money if it is worth it. I promise if I complete them pictures will be posted! Please Help Me Out!