Vampires come from all nationalities and races. Instead of the one St. Valentine of the Christian Religion. The Simularities are already there. The holiday already starts with a V, and can shortened to V-day. Hearts and the color red are common items to a vampire.
Lace is worn by many a vampire.
Velvet usually worn with the lace. Candle light dinners, and red roses. But No Sappy Stuff. Examples of Emotions for Vampire's Day. Hatred is a fun one for Vampire's Day.