Our wedding is an evening ceremony, and black tie. My FI has said that he wants to somehow distinguish himself and the groomsmen from the other guests through their attire. His point is that all (or the vast majority) of our male guests will be in tuxedos, and he doesn't want to be wearing the same thing as them. He tried on a jacket with tails and looked fantastic but didn't like it, and he won't wear a white tie. I'm not really sure what to suggest to him! Are there any formal wear options I'm not thinking of that he could wear?