Using the shower

[Kajtek1]

Swedish manufacture steam-proof wallpapers. I had it in my house shower in Europe 25 years ago. Look great and lasted. I guess you can find them here with some search.
Other option are bathroom panels from Home Depot.

[bighowdytex]

I live in my 67 Overlander full time at a very nice RV resort/park. I use the rather opulent private shower facilities at the park clubhouse (you never run out of gallons upon gallons of hot steamy water...my old land locked house was never that forgiving!). When I take my rig to the Texas Gulf Coast and boondock, its the 5 gallon solar shower routine for me and any significant other who accompanies me. In an emergency its the old 1 gallon GI bath wash cloth routine in the AS "bath" room.