It is possible that a dark, formal dinner suit would also be acceptable at a black-tie event, and its possible to opt for velvet smoking jackets or dark dinner jackets
(Hoover lived with his mom until she died in 1938.) They say Richard Nixon, on hearing of Hoovers death, exclaimed with his customary delicacy, Jesus Christ
Oxford and Derby: The formal and smart-casual pillars The Oxford (closed lacing) is the most formal brown shoe option and pairs best with tailored black wool trousers or black dress pants
If its a couples costume youre after, I suggest looking to the most popular couples of the day for inspirationKurt Cobain and Courtney Love, Reese Witherspoon and Ryan Phillippe, Justin Timberlake and Britney Spears, Will Smith and Jada Pinkett Smith, Hugh Grant and Elizabeth Hurley, David and Victoria Beckham, etc