That Minnie image turns out to be hard to pin down. The main clue to follow is the word "Bladid" in the image, which doesn't seem to translate to anything real, and may be part of a longer title. I found a couple of claims that it was a promotional image for some old Euro Disney something-or-other, and it may be a made-up promotional word like "Fantasmic," that won't match a translation search, but I couldn't fight my way out of a loop of sites quoting each other as sources without providing an actual source. Here's a quote from one such:
How can anyone deny the naughtiness in this photo? “Mickey Mouse: Bladid” is one of the more popular images circulating on the internet of Disney allegedly trying to slip male genitalia into their advertising. While the cover art is real, it’s a challenge to find out exactly what the ad was for other than it was some sort of product from Euro-Disney.
http://www.thetalko.com/15-disney-movie-mistakes-that-are-totally-on-purpose/
There are a jillion of these, often less responsible, Disney expose kinds of sites, all hawking some kind of titillation connection. It's either "can you believe Disney tries to get away with this stuff, or much less often "can you believe people really think Disney is trying to get away this this stuff."
But to the extent that some of it is probably real, like this DCA casting couch sign, I suspect it has to do with young, hormonal male artists. I mentioned some time ago that decades ago I eked out a living as a scenic/lighting designer in regional theater. In a couple of my earliest designs in my youngest, most hormonal, phase of that career, I inserted quite a few ... uh ... in reference to that Donald image I posted above, let's just call them "ducks" ... into my designs. I crammed so many ducks into that Arthur Rackham inspired design of "Beauty and the Beast," I'm surprised I wasn't called out on it in the reviews. I mean, I had a forest full of wood as a background, and I wasn't all that subtle. Based on that, I have no trouble believing that Mickey/Minnie image is authentic.