Bring a touch of dark magic to your morning coffee with this Harry Potter Dark Mark Mug. The 400ml (13 fl oz) black ceramic mug is inspired by the mysterious world of the Death Eaters. It features Nagini, Voldemort's infamous serpent, coiling around the mug and seamlessly forming the handle. Not suitable for dishwasher or microwave use. The Harry Potter Dark Mark Mug is a must-have for any Potterhead and makes an unforgettable gift.