Steely-eyed readers may notice that the keychain is the same one as, or at least identical to, the one that came in your BlizzCon '09 goody bag. Of course, this one is "made of rhodium, a rare metal offering even higher quality than silver." The mug, on the other hand, is a never-before-seen piece of merch.
The set is, of course, limited edition, so if you want to make this the perfect gift for the burgeoning death knight in your family, you'd best act quickly. Then again, I don't think they like warmth very much. Maybe an insulated mug isn't the best gift idea. I'm thinking -- hear me out -- macaroni necktie.