An example (scroll down) http://http://urbansemiotic.com/2009/04/28/my-old-kentucky-penis/
Difficult to believe this wasn't intended.
I wouldn't have "seen" it unless it was pointed out and I don't think it was intentional. I think people are reading/seeing waaaaaayyyy too much into these things. And I think a lot of people are afraid of catching "teh ghey" (you can't catch it, stop worrying).
"Offensive" picture in question:

If you don't see it, here's part of the explanation, "It seems, according to scandal and the creation of a legend, that the artist hired to create that Wildcat logo for the University of Kentucky was Gay, and to serve a personal, private, agenda, he chose to include a man’s private parts in the mouth of the hardy UK Wildcat. "
But before that, they address Farrah Fawcett's famous poster They say that the word "sex" is spelled out in Farrah's curls. 1. I don't see it 2. I don't think they took the time or effort to get the curls fall 'just so' and probably most importantly 3. Now...stay with me here but, wouldn't it be sorta redundant in that poster? I mean, doesn't it kinda scream 'sex' anyway? How many young boys had their first "self fulfilling" experience to that poster simply because of the nipples??

Have you an opinion of the Donald Duck ride from the OP link? Intentional or not?
Not. I really think people have a little too much time on their hands and possibly aren't getting enough sex so they're seeing it everywhere.