Organise your Oyster Cards, Bus Tickets, Train Tickets and other Travel Cards with this officially licensed link - Hogwarts. It features a grey varsity-style 'H' with white embroidered detailing and the word 'Hogwarts' in white, all on a black background. Bus, train and tube tickets, as well as bank cards, fit inside the two interior window slots, so your tickets will be kept safe during any journey.