Twice overnight in the past week, a happy and welcoming 15-foot artist-painted duck appeared on commercial buildings in Waynesboro. Similar art of ducks have popped up in Waynesboro, Charlottesville and New York City, but were modestly-sized stencil pieces only around one-and-a-half feet tall. The Therapy Ducks are the works of artist Terry Ward who is also artistic director of the non-profit Virginia Street Art Festival.