We use an over the door that I found at Bed Bath and Beyond. They have a web site in case these stores are not all over the nation. Got this as a temporary fix but so far haven't done anything else. I like the looks of the oak ones. Our door isn't flat but I think we could make it work. Hadn't thought of hanging the over the door over the shower, think I'll try it but don't want the glass to break.
Had to check my memory....we bought ours at Camping World, on sale on the internet at $14.39.....I think. Already forgot We never were worried about it breaking the glass. The velcro that I used stabilizes it when you take the towels off. We lay it on the bed when we're driving.
While we were at the Rally in September there was a show and tell. Skip of Country Folks added a double brass towel bar on his shower door. He did an excellent job and it looked really sharp. I don't know if he has pictures or not, but maybe he'll pop in here and explain how he did it? I'd love to do it to ours but the Big Sky has no holes in the glass and we're really hesitant to try and put any there.
Thanks for the information. It's time for a shopping adventure for Montana accessories! The over the door towel bars seem like a good solution - I'm not too keen on drilling holes in the Montana either!