Queen Oyster Card

It seems that every organization in London is jumping on the bandwagon of either the Olympics or the Queen's Diamond Jubilee. Transport for London (TfL) is jumping on both (title link). It's producing a limited edition of 250,000 Diamond Jubilee Oyster cards, to be issued in mid May, and 1.5 million Olympic cards, to be issued in mid June. They will cost £10 - £5 deposit and £5 credit for travel - and, if everyone keeps them as souvenirs, TfL will make a small fortune.