Vampire Blood Glass Vial Necklace £4.99 £4.99 Add To Basket 1 in stock. This is a test tube style glass vial necklace, filled with vampire blood. Of course it isn't real vampire blood, this is high quality fake blood. A really cool necklace for those "dark" days. and for Halloween. The silver toned necklace is 17" long, the vial with cap is 3cm in length. Note that the vials and the cap are sealed.