The mirror universe ships come with their own unique mirror universe skin, of course. But I think they should come with their own mirror-style bridges as well. A darker version of the standard one(s), with lots of Terran Empire logos on the doors and whatnot.
What do you think?
"It's not safe out here. It's wondrous, with treasures to satiate desires both subtle and gross. But it's not for the timid."