Yeah, I’ve already made my patch. I considered buying a plastic or metal plug from Lowe’s, but decided to just use some material I already have since I wasn’t going to be able to find a perfect match anyway.
Turned out pretty good if I do say so. I always say stuff like this isn’t a blemish on the old camper, it adds character to it! :W

The lights are recessed into the ceiling about 1/2”. It’s always interesting to see how they used scrap materials building the camper. The recessed hole has a “donut” made of counter top material (with the Formica still on it) surrounding it, and a scrap of wall paneling with the vinyl covering visible on top of that. The void between the ceiling and the roof is at least an inch thick, which is of course filled with styrofoam insulation. I think this construction would have been typical of the wood framed TC’s Lance was building at the time (2001).
:):)