How to Cut Glass Bottles in Half Using Fire and Glass Cutters or Acetone-Soaked String
Want to make your own glass drinking cups? You don't need to be a glassworker to get creative. Just recycle some of your old beer, soda, or wine bottles into stylish toothbrush holders or glass cups.
You can tie a loop of string that was dipped in nail polish remover around a glass bottle of choice, then set the string on fire with a lighter. Then just submerge the bottle in a sink of cold water and gently snap the bottle into two separate pieces.
If you have a glass cutter and some kind of support that can hold the glass bottle horizontally in place, you can mark where you want to cut the bottle. Use a lit candle to heat the marked line five to six times, then submerge it in cold water and tap on the glass to separate it into two separate pieces.
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