Ningyo Kuyo, a festival in which people bring unwanted dolls to a temple to be disposed of in a special ritual. Japanese people can be very superstitious about dolls, and apparently don’t like to throw them away, believing that they have souls. During the festival, a Shinto Priest says prayers for the dolls and then they are burned.
This festival is coming up on Thursday the 25th of September at the Kiyomizu Kannon-do temple in Ueno park, Tokyo every year. It starts at 2:00 PM. The reason the festival is held on the 25th, and not on a weekend like most rituals is that 25 (nijyu go) sounds like the word for doll (ningyo).