[The Question]

I think the domino mask works. Winter Soldier is a complete weirdo, after all. He's been systematically brainwashed for 70 years after receiving a massive head injury. It'd be weird if eccentricity didn't come included. It even makes sense in the context of the story. Captain America is known to history as the world's first super hero. It would stand to reason that Bucky is remembered in history as his side kick, and the mask would be his demented way of mocking the concept.