I Like That Lamp Clip On Lampshade Adapter (2 Pack), Classic Brass Gold Finish, Includes 2 Light Bulb Clip Shade Adapters, 2 Matching Finials and 4 Silicone Levellers, Fits All Standard Size Bulbs - Amazon.com
What is a clip on lamp shade? - Flip The Switch
LAMPWELL MEMO Clip-on Small Fabric Lamp Shades for Table Chandelier Wall Lamp,Set of 2,Small Drum,5.2"×5.2"×H5.2",Linen, Handmade,Modern Trendy Decorative,Beige, Lampshades - Amazon Canada