Dental casting is super fun, and way easier than it seems. Halloween is the perfect reason to make a cast of your teeth to sculpt custom fake teeth on top of them (as if you needed a reason)!
If you can't get your supplies locally, there are lots of places to look on the internet. I went directly to one of my favorite companies, Monster Makers
. They sell everything you need, plus videos, to show you how to make awesome, gnarly teeth (and a bunch of other cool stuff).
But before you can make your fake teeth, you have to cast your real teeth! This Instructable is going to show you how to make a professional grade mold of your teeth, just like a dentist would.