If you're a big fan of HBO's "Game of Thrones" there are some new stamps available for you to stick on your ravens and send a message. However they are just available over in England, currently.
Right now our friends across the pond can get these for the Royal Mail.
I'm hoping that at some point we'll be able to get them for the US Mail, but right now there's not update on that.
They feature a number of different characters from the shows so they are a must for any collector.