Thats a good idea, but i dont have a dremel.. check this video out for another way to take the bottom out of the bottle with your bare hands. This guy screws it up but ive seen people break it out clean http://www.youtube.com/watch?v=lDMcrvjDpCY&feature=fvwrel
Thats a great idea, when I was on the MT. I had a similar method just a little more ghetto but worked great! I made at least a half elbow of BHO with 12 oz plastic soda bottles, I tried bigger size bottles and it didn't produce more or better quality. Just my 2 cents, If you do use the plastic soda bottles you want the made a new bottle after about 5 cans of butane blasts.
