San Martin Design Lampshade Diffuser, Translucent Light Shade Diffuser Made of 1/16-inch Thick Polypropylene, Natural White Colour Lampshade Light Diffuser, Variety of Diameters Available (8) : Amazon.co.uk: Lighting
Lamp Shade Diffuser - Foter
5.6 Inch ID Lampshade Diffuser Dust Cover for Fabric Barrel Lamp Shade