An example appears on the Horrors page. On the website, various icons represent the topics being discussed, such as the Grim Reaper for the "Murdering Madmen" section and the skull and crossbones for "Poisoning" legends. What's the icon that represents "Parental Nightmares"? Elmo!
In one article about Dear Abby getting pranked by a letter based on the plot to an episode of The Simpsons, Barbara admits that she once pranked Ann Landers (Abby's sister) with a letter based on an urban legend, and she fell for it.
Many of the "phallus on an innocent label/poster/drawing" myths are usually this. Especially because 90% of them turn out false.