From nowhere four cardboard polyhedrons, spray-painted black, appeared on my street, blown here by the strong West Texas wind. I like that I have no idea where they came from or who created them. Every time the wind blows, they move, creating a new installation. Sometimes they are at the east end of the street, sometimes the west. Sometimes they settle into sets of two. A couple have blown across the fence into the large field in front of my house, black against the tawny, dry grass. They seem quite at home, settled against a curb or tree trunk.