Glow In The Dark Skull Necklace Was £8, now £4.99 £4.99 £4.99 Add To Basket 1 in stock. This glow in the dark skull necklace is an eye catcher. This skull is slightly shadowed for a creepy effect and glazed. The skull is approximately 2", the black cord necklace is 17" with an extra 2" extension. A creepy, timeless and unusual handmade little treasure.