Not just Disney. In Bugs Bunny’s early “three bears” (tell me more about my eyes) there appears to be a nudie picture or calendar on the wall.
Heh, you thought that was dirty? Wait till you see one of the Private Snafu cartoons, there’s a LOT more explicit nudity there, especially female nudity (one of the later cartoons which seemed more like a Bugs Bunny cartoon with Snafu and some Japanese soldier actually had a pretty blatant nudie pic seen among Snafu’s possessions).