Square D X Series 1-Gang Midsize Round Standard Single Outlet Wall Plate Matte White SQWS422001WH - The Home Depot
Sam Sandor - Black Design - Round Light Switch Plate Cover - Double Toggle - Amazon.com
Classic Accents, Inc.: Jumbo White 1 Gang Wall Plate for a Single Round Outlet
Tondiamo Ceiling Cover Plate Flat Round Electrical Cover Blank Circle Wall Plate with 4mm Screws Ceiling Fan Switch Cap Cover, 4.32 Inches in Diameter, White (12) - Amazon.com
1.125'' Round Opening Control Unit Wall Switch Plate - White