Black, white, and blood red are the colors that come to mind when I think of vampires and they're perfect for decorating a vampire party. Start by placing black candelabra with blood-dripping candles around the event location. Hang bats from the ceiling and stretch spider webs across the walls.
Serve the food on red platters, the soup in test tubes, and the cocktail in clear martini glasses. Sprinkle skull-and-cross-bones confetti across the tables, and place plastic vampire fangs in between the serving platters. Stack black napkins nearby. Bouquets of red roses finish the look.