Wall tile. Tiling a wall flat out sucks. The problem is that you can only measure, cut, and lay out about two rows at a time. Then, the next row always needs the previous one to rest on. It wasn’t easy, and took about two days just to do the shower, but I’d like to think it came out pretty well.
We used large grey tiles for most of it, and added some little metal tile sheets about a third of the way down to break it up. It was at this point we realized this was no longer the Murder Room as we have come to know and love.