In a series of workshops, Washington University alumnus Takashi Horisaki invited members of the community to select items of personal significance to them, then showed them how to cast the objects in a mixture of latex, pigment and cheesecloth. The resulting traces — strangely limp, brightly hued and imprinted with the shapes of familiar forms — behave somewhat like clothing, preferring to be hung rather than organized like graspable objects. In a show curated by Los Caminos, the casts hang in CAM's Front Room gallery in delicate, loose rows — like lines of otherworldly laundry, or a diaphanous, ceiling-strung quilt. Lit from above by the museum's clerestory windows, the colorful pieces possess a luminous buoyancy that offsets their elegiac character as remnants of things held dear: A toy dog's head; an imprint of a brick whose provenance is unmistakably engraved ("St. Louis"); a crucifix; a small bird; a wrench; a dinosaur. We're all of a piece, the assortment seems to say, without belaboring its message — which is itself borne of a motley confluence of chance, whimsy and collective goodwill. Through July 15 at CAM (Contemporary Art Museum St. Louis), 3750 Washington Boulevard; 314-535-4660 or www.camstl.org. Hours: 10 a.m.-5 p.m. Tue.-Sat. (open till 8 on Thu.), 11 a.m.-4 p.m. Sun.