Iwata Asks: Miiverse Penis Drawing Detection Took Weeks to Develop | Play4Real
http://p4r.buzzleberry.com/?p=481
According to a survey of Wii U users, around 20% of drawings encountered through the Miiverse include one or more penises.
Mii mug shots infiltrate corporate websites - Joystiq
http://www.joystiq.com/2007/01/05/mii-mug-shots-infiltrate-corporate-websites
"I quickly noticed the use of Mii avatars representing the management team."