My DH will be wearing his military formal "mess dress" tux. It is navy (AirForce) instead of white or black but I think he will still look sharp. My DS wants a white tux and his Dad wants it to be black, don't know who will win out yet on that one. I'll most likely wear my black long dress, it's a two piece and very comfortable. Thing is, black isn't really my best color, I'm fair and freckled, oh well, nothing looks as dressed up as black. Will black clash with my DH's navy? DD has a couple of dressy dresses to choose from plus a couple deluxe princess costumes as well. I'll leave it up to her what she wears for the formal nights.