Glass cutting with only yarn and fingernail polish remover- Here is what you do: -wrap the cotton yarn around your bottle 5-6 times, tie and cut ends. -slide yarn off of the bottle -dip in nail polish remover -slide the wet yarn back onto the bottle---NOTE---the bottle will be cut at whatever angle you have the yarn at, so if you are interested in doing a sideways cut just adjust your yarn -light on fire ****please please be careful**** -only the wet yarn will be lit on fire and the flam