You can now get on the wait-list for the QMx mini metal Star Wars ship keychains at the QMx store. This first round of metal replica keychains will include the Imperial Star Destroyer, Slave I, and the Millennium Falcon. See Rebelscum for the full story and a link. I like the Slave I..
Those are all very cool. Great detailing. The thing is I don't really care for keychains. Between my keys, various store "loyalty" cards and my remote starter, my keys are already so bulky. I feel like a school janitor sometimes.