Habitat Group for a Shooting Gallery by Joseph Cornell, Des Moines Art Center
Cornell assembled fascinating groups of found objects. He liked to juxtapose different objects and his love of surrealism comes through in these groupings.
Windows
Found and Flowing
Between Heaven and Earth by El Anatsui, 2006. The Metropolitan Museum of Art
From Ghana, artist El Anatsui uses found object to create beautiful works of art that drape and hang within the spaces in which they are shown. He also uses more traditional mediums like wood, clay and paint, but you can find bottle caps, metal cans, aluminum wrapping, etc.