Not all drug stores stock this. Try ordering it online, or asking your dentist. Remember that the things that go in your mouth need to be clean.

This method is quick and easy, and the fangs are easily removed and reattached.

Don’t cut too close to the fold. That area of the straw will go over your tooth, and needs to be kept intact or the fang could fall apart.

Alginate, available from dental supply stores and some art supply stores. (Online vendors are your best bet. ) A paper cup or mouth guard. Plastic casting resin, or another casting material. This is available at hobby shops, or some art supply stores. Sculpting clay and a small tool to shape it, from an art supply store. Nail acrylic (in two-part powder and liquid form), from stores that sell beauty supplies (also available as dental acrylic)[2] X Research source Petroleum jelly (Vaseline), from a drugstore

Skip this step if you have a real mouth-guard on hand or decide to buy a real mouth-guard.

You will need to work fairly quickly when using the alginate portion of this method. An alginate mold will begin to crack and break apart within hours.

Do not push the mouth-guard so far up that your teeth go through the bottom. Wait until the alginate becomes solid before removing it. If you want a more accurate way of determining when the alginate is ready to remove, place a small dot of it on your finger and watch for it to turn solid.

Choose a two-part cast plastic that dries hard and comes together quickly. Make sure that the plastic will be non-toxic when dried.

Within several minutes of being combined, the plastic should become very hot and turn white. Do not touch it with your bare skin. After the plastic is dry and cool to the touch, wait an additional 10 minutes before removing it from the mold. This gives the inside plenty of time to dry, ensuring that your plastic teeth will be solid once removed.

Optionally, add a small “cap” of clay over the teeth directly behind the fangs, to make them more stable. [4] X Research source

The acrylic becomes hot as it mixes. Avoid direct contact with your skin. Mix the acrylic in a well-ventilated area.

If the fangs do not stay in place on their own, however, you can hold them in place using denture glue, braces wax, or a small dot of gum.

Combine the wax with clay for a more realistic look.

If the tines do not break off at the base, use a clean pair of sharp scissors or a clean utility knife to shave off any remaining plastic. Instead of snapping the tines off by hand, you could also remove them by directly cutting off the entire tine with a pair of scissors or utility knife.

You will actually end up cutting away more than just the handle. Trim the fork roughly halfway in between the handle and the base of the tines, right at the spot where the fork begins to curve. The remaining piece should be fairly boxy rather than being rounded. Make sure that the scissors or utility knife you use is thoroughly cleaned and sanitized before using it since the plastic will need to go in your mouth after coming into contact with your cutting tool.

Apply the wax to the portion that curves “in. ” This part was originally the front of the fork.

Make sure that the fangs are centered at the front of your mouth. You should be able to see an even amount of your two front teeth in between the fangs when done.