Listings show a range of suggested ages — labeled for adults, for ages 14 and up, and for ages 3 and up.

Yes. Some costume teeth are sold as joined top-and-bottom vampire fangs or as sets that include both upper and lower teeth for a fuller bite look.

Yes. Some listings offer glow-in-the-dark pretend fangs, often sold in multi-packs for party favors or novelty use.

Commonly listed materials include copper for some grills, plastic for many costume teeth, and polyester for certain vampire-style pieces.

Some listings note tested materials and label certain fangs as non-toxic; others include age guidance and choking-hazard warnings for small parts.