If you check out youtube you can find a bunch of videos showing you various ways of cutting through a bottle. I found scoring it with a glass cutter and then pouring water of it (alternating between hot and freezing) worked best. This bottle however, was extremely thick and odd shaped which made it both beautiful and a devil to work with. After a ridiculous amount of heating and cooling the thing cracked but did not quite follow that exact scoring. The end product is below. Not perfect by any means but a start and definitely something I will come back to at a later date.