Clip on Lampshade Adapter Includes Finial and Lampshade - Etsy
SLIP UNO Adapter Converts your 9" high Lampshade to fit on SLIP UNO Lamp Base (1 7/16" opening) - 6"h - - Amazon.com
Spider - Lampshade Duplex Adaptor Converter
How to Use an UNO Shade Adapter
SLIP UNO Adapter Converts most 13" high Lamp Shades to fit on SLIP UNO Lamp Base (1 7/16" opening) - 10"h - Walmart.com
Fitter Types
Lamp Shade Adapter Spider Harp to UNO Reducer Drum Floor Lamp Pendant – Adamantium 3D
Slip Uno Adapter Converts your 11" high Lampshade to fit on Slip Uno Lamp Base (1 7/16" opening) - 8"h - On Sale - Overstock - 28384814
How to Make a Lamp Shade Ring Fit — Mid Modern Mama
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
Clip On Lampshade Adapter - Includes Finial and Lampshade Levellers to Keep Lamp Shade in Place - Light Bulb Clip Adapter for Lamp Shade - 1 Pack - Walmart.com