allen + roth 12-in x 15-in White Linen Fabric Square Lamp Shade in the Lamp Shades department at Lowes.com
White Square-Cut Corner Table Shades, Replacement Lamp Shades- LOT OF 2 82803914142 | eBay
White Linen Large Square Lamp Shade 7" Top x 17" Bottom x 13" Slant x 12" High (Spider) Replacement with Harp and Finial - Brentwood - Lampshades - Amazon.com
Bell Cut Corner Silk Square Lamp Shade | Lamp Shade Pro