KANAMARA MATSURI- Held every April 15th at Wakamiya Hachimangu Shrine in Kawasaki Japan, this festival is about as wild and pagan as they get. People of all ages participate in a parade in which most of the participants sport a gigantic penis, and a giant lingam is carried through the streets. Females ride a penis-shaped seesaw, and men, women and children get their picture taken embracing a phallic statue. You can also buy penis shaped candies, or dress up as your favorite cartoon character with one part of his anatomy dramatically enlarged. The whole thing is presided over by a priest, and arcane Shinto rituals are carried out as well.
The festival is said to celebrate the vanquishing of a demon that lived in a woman's vagina and would bite off the penises of her lovers! According to legend, a local craftsman fashioned a steel phallus which broke the demon's teeth. In the Edo period courtesans would come to pray for good business and protection from sexually transmitted diseases and today it is used to promote AIDS awareness and safe sex. The Kanamara festival is held at Kawasaki Daishi Station on the Keihin Daishi in the beginning of April. If you would like to see a great free video of the Kanamara festival visit TokyoDV.com, a site featuring amateur videos from Japan. You can see the penis festival, rock bands and goths in Inokashiro park, or the cheesy graduation ceremony of a kimono school. There's a lot of hilarious stuff here. The URL is: http://www.tokyodv.com/.
taken from http://www3.tky.3web.ne.jp/~edjacob/festival.html