WOWOW 1.2 in. Plastic Sink Basin Trim Overflow Cover Insert in Hole Round Caps in Oil Rubbed Bronze(6-Pack) K1003RB-6-HD - The Home Depot
Amazon.com: 2 Pieces 2 Inch Kitchen Sink Hole Cover Faucet Hole Cover Stainless Steel Kitchen Sink Tap Hole Plate Stopper Cover Blanking Metal Plug (Black) : Tools & Home Improvement
The Period Bath Supply Company (A Division of Historic Houseparts, Inc.) > Drains & Supply Lines > Solid Brass Sink Hole Cover - Multiple Finishes Available