Round tail lights or some sort of third brake light setup with no spare?

Might not look bad, I'm having a hard time picturing them though. You could always put an LED in those housings.

I'm having a hard time picturing them as well. I would love to find them locally and hold them up there, but that isn't going to happen. lol I might just not do anything with the lights for a while, but it is fun to think about little things on this TJ.