This article that Bill spotted mentions a trench art exhibit at the National WWII Museum, a place I still want to visit. I wouldn’t be surprised it there’s a few trench art jeeps there, too.
https://www.nola.com/entertainment_life/article_6542294e-1592-11ec-b22f-479c562f0e04.html
Here’s one example of a trench art SEEP at the exhibit:

From this site: https://www.historynet.com/what-is-trench-art.htm