There's an art gallery at Recology, the disposal center near Candlestick Park, and an exhibition is opening there Friday.
A circular keyboard from an old upright piano, controlled by a discarded laptop... Vinyl sign material that becomes part of an environmental drawing... You can find this stuff in the studios of the two current artists-in-residence.
Their resource is the place where people drop off their trash.
Hundreds of artists have gone through the Recology residence program in 21 years. Some of their works are displayed in a 3-acre sculpture garden. They give tours by appointment and they hope the works might be inspirational.