Vampire teeth. Billy bob teeth A unique fitting material is included, that makes these goofy teeth fit over your own teeth perfectly without using any glue or adhesives! Simply heat the material in hot water and place on the back of the Billy Bob Teeth. Gently bite down allowing the material to cool and form a perfect impression of your own teeth! Now you can pop them in and out whenever you want. They are Re-Usable. Once your custom Billy Bob Teeth are fitted you can use them over and over for years to come! If the fit ever becomes loose you can reheat the material and refit them at anytime.