Glad you asked...
To make your own gold teeth, you need to purchase a dental molding kit and, of course, some gold sheets. The best molds will probably be those made for you by professionals, but it is possible to make your own with practice and the right tools. Please take care and seek a well-ventilated place in which to make your gold teeth.

Please refer to the link below for step-by-step information. How to make gold teeth at home. http://www.howtodothings.com/fashion-per...
Then again, this answer might help you...
A fun way to make gold teeth for your costume is to take foil and mold it to your body. Then you paint the foil gold. Let it dry and you have some gold teeth!

