Nightmare Before Christmas - Pocket POP! Vinyl Keychain Jack Skellington 4 cm €6.00 was €9.00 Default Title - €6.00 Quantity This product is currently unavailable. Please fill in the form below if you'd like to be notified when it becomes available. From Funko's popular 'POP!' series comes this cool keychain. It stands approx. 4 cm tall and comes in a window box packaging.