Campers have very little free wall space so hanging pictures and such is problematical. Counter space is typically even more limited so displaying things there is not practical. I can think of only two things we have done that might be considered "decorating" One - we found a large melamine serving tray with a picture that had the same colors as the camper's interior. We propped it up on the little cornice above one of the windows. There it serves as a piece or art, but it is used almost every day as a serving tray. The other thing is a very small cast (plaster of paris I think) bear's head souvenir that my Dad brought home from a business trip when I was a small boy. Miraculously it has somehow survived. We hung it from the woodwork above the slide. Most people probably don't even notice it, but i'm a little sentimental about it and I'm glad to still have it.