Could we have a reference picture please?
If you just need fangs that poke outside your mouth, then cheapo vampire teeth would do the trick. However, since you're posting here and obviously having trouble finding the right fangs, I doubt that's the case. Therefore, you could just buy a few packs of fangs that come with a special adhesive. Most packs only have two, but you probably would want to buy two packs of large and two packs of medium fangs to cover the portion of your mouth that people will see most. The packs of fake fangs are relatively cheap, $5-10 each. However, a reference picture would really help.
Angel of the Lord
I'm a Florida graduate student who must choose between following the heart (which wears a flower crown and carries a basket of cookies while skipping along a beach) or following the brain (which wears a graduation cap and carries a clean bill of no student loan debt). So far, I choose to follow both.
Megacon 2016 - Fem!Link from Twilight Princess
Walker Stalker Orlando 2015 - Beth Greene
MegaCon 2015 - Fem!Castiel