Cabilock Round Lampshade Frame E27 Lamp Shade Ring Set DIY Drum Ring Lamp Shade European Style Fitter Lampshade Frames Light Shade Holder Metal Ring Support Galvanized Light Cage Guard - Amazon.com
50x E27 to E14 Lamp Shade Ring Adapter,Converters Plastic Open-End Lampshade | eBay
E26 E27 Lamp Shade Collar Rings,JNXQWE Light Socket Ring,E26 E27 Lock Socket Replacement Adapter Ring with Inner Diameter of 1.57 Inches(40MM), Retainer Rings for Light Fixture (4, Black) - Amazon.com
E27 metal lamp holder kit with double ring nut
uxcell Lamp Shade Ring, 100mm Dia. Lampshade Holder Frame Ring for E26/E27 Lamp Socket, Baked Coating Iron 2 Set - Amazon.com