Tell me how to cut glass!!!

Recycled Drinking Glasses by Emma Woffenden and Tord BoontjeTransglass Carafe

I have one of those ‘craft’ bottle cutters–the kind with the wheel-y cutter and tapper deal. For cutting a straight line on a regular bottle, it works fine. Well not fine, but it does cut. What I wanna do it cut necks of bottles both straight and wonky like the bottles pictured here. These particular examples are from Emma Woffenden and Tord Boontje, and they aren’t cheap, considering where they came from originally: the recycling bin. They’ll set you back anywhere from $39 to $57. And a set of tumblers clock in at $61. (Available at Re-Modern.)

Lidded Carafe

Via.