Ignoring the name calling, dick waving and other assorted bullshit in this thread, I've heard of couples making new names from anagrams of both last names. Sometimes changing the spelling to eliminate potential confusion over pronunciation. Had I heard of this before getting married, I would have suggested it. If you're starting a new union, what's wrong with founding that union under a different name than either of the pre-existing unions?
Thief and assassin for hire. Member in good standing of the Rogues Guild.