If you visit Kyoto or Nara on Japan, you can see many temples or shrines. Temples are places to worship Buddha, and shrines are places to worship Shinto gods. Shinto is Japanese traditional religion.
An ineresting festival is held at Asukani-imasu Jinja shrine, and it's named Onda-matsuri. Onda means "precious rice field" and Matsuri means "festival".
The Onda-matsuri at Asukani-imasu Jinjya shrine is known as a sexual festival. During the festival, a skit praying for a good harvest is performed with sexual humor. The most appealing property of this skit is a model of penis. It's used as a symbol of large yield of crop.