E26 to E26 Socket Extender,TWDRTDD E27/E26 to E27/E26 Lamp Holder Adapter (3Pack) - - Amazon.com
Husky 3/8 in. Drive Impact Extension/Adapter Set (3-Piece) H3DIMPSAS - The Home Depot
DiCUNO E26 Socket Extender, E26 to E26 Standard Medium Base Lamp Bulb Socket Adapter of 5CM/1.97 Inch Extension, Max 200W Light Bulb Extender 2 Pcs - - Amazon.com
E27 Flexible Light Bulb Lamp Socket Adapter Extender/Adjustable Edison Bulb Socket Extension for Home Light Fixtures/LED Grow Light Socket Stand etc (7.8inch,4-Pack) - - Amazon.com
DiCUNO E26 to E26 3CM/1.2 Inch Socket Extender, E26 to E26 Lamp Bulb Socket Extension, Lamp Holder Adapter (4-Pack) - - Amazon.com