This video tutorial shows how to make a cool beer glass out of a beer bottle. This is also a great trick for cutting the bottle; forget the glass cutter or tricks with string and acetone. Just pour oil up to the level where you want the bottle cut off and place a red-hot piece of metal into it. Because of the great heat conductivity of oil and at the poor heat conductivity of glass, it will expand at the edge of the oil surface, cracking in a nice even line. Watch this instructional video and learn how to make a beer bottle glass.