I realized I should have included the link when I talked about bottle cutting before. this technique works the best for me so far. I do not have the bottle cutter, but a small cheap tool from the hardware store. I fasten that in a vise, then with a solid grip I turn the bottle around in a circle, letting the cutter cut all around the bottle once or more if needed.
The piece on the left is a cut cod liver oil bottle, and the glass on the right is from a sprite bottle. (In Belize most sodas still come in glass bottles)
This can be tricky, and too often I end up with broken bottles.They don't break while cutting, but while pouring the hot or cold water to separate the two pieces.
Do you see that this bottle is thick in some ares and thin in others? If you have a bottle like this, you just happen to be unfortunate, because they don't want to behave when splitting. I threw away two of these big rum bottles and am thinking they might never work for me.
I am most successful with the regular wine bottles that I cut at the bottom. These I can turn into wine glasses or candle lanterns, either one.
If these glasses tip over, they will most likely break. Trust me, I speak from experience!
And here's what you don't want -- an explosion. Too bad for me, I had to find this one out personally too! Before pouring hot water for the first time, make sure the cap is off! I had a frosted bottle that was supposed to work out well, but since I had forgotten to take the cap off, it exploded into two when pouring the hot water. DON"T do that! No one got hurt, but it still gave me a good scare.
They do make lovely flower vases.