David Kezur's scrapheap assemblages look as though they ought to perform some function, but in fact they're content simply to radiate mystery. Fashioned from all manner of refuse--porcelain doll heads, battered bits of wood, antique toys, snake skulls, old dentures--the work combines the fragile romanticism of Cornell with the wicked humor of Dali. Though this is a provocative juxtaposition of sensibilities, Kezur's pieces often seem little more than a visual punch line. When the work relaxes a bit and refrains from being so exhaustingly clever, it hums with a quiet, magical quality that's quite compelling. (Art Space, 10550 Santa Monica Blvd., to July 12.).