Gummer's commissioned works have included Primary Compass (2000), a site-specific outdoor permanent sculpture at the Butler Institute of American Art, Youngstown, Ohio and a sculpture/fountain in Historic New Harmony, New Harmony, Indiana. The Optimist” by Don Gummer was placed at the entrance of the Preston Arts Center, formerly the Henderson Fine Arts Center, on September 30, 2001, in Henderson, Kentucky. The sculpture made of cast stainless steel with a bronze base measures 7 ft. high, 4 ft. deep and 5 ft. in width and is mounted on a six-ton Indiana limestone base. “Fear and hate are no match for love and optimism” . . . Don Gummer . . . from speech at dedication and unveiling ceremony. One stainless steel and stained glass sculpture, Southern Circle, standing 25 feet (7.6 m) tall and weighing approximately 20,000 pounds, was commissioned by the city of Indianapolis and dedicated in October, 2004. "Primary Separation", a permanent installation at the Massachusetts Museum of Contemporary Art, was completed in 2006.