Bottle Cutting: there are countless ways to cut or to break a glass bottle or jar, Eternal Tools share our favourite method. This method is fool proof; quick easy, leaves the cleanest cut. 4 easy steps, show you how.
How to neatly and easily cut a glass bottle using household items. -acetone (nail polish remover), - string, - matches, - a sink filled with cold water. This how-to video is very useful (IF you can stand the extremely annoying music in the background).
How To Easily Cut The Bottom Off A Wine Bottle -- (I would try this outside first. Don't know if there are any small fractures in the bottle when the 2 pieces split in the cold water. Interesting idea and definitely worth a try.