Isn't it crazy how they put the wall shower benches in the shower? I don't get it.
Anyway, I asked for a shower bench at OKW and they brought me this little thing that looked like a foot stool. My wife and I just laughed at it.
I went to the front desk and spoke to the manager and she told me to go have fun at the park and when I came back she would have the proper bench in the room. As she said, when we returned to the room a proper shower bench was there.
I don't have a picture of it, but I am sure it would fit your needs.
If you are anything like me there is nothing like your own shower bench. I just feel so much safer on my own, but believe me this one was really great.