110-250V 4.8M Cable US JAPAN Plug Extension Standard Power Extension Cord Socket For Home Power Strip 3 In 1 Converter Socket - AliExpress
15 to 30 Amp 110 Volt RV Power Cord Adapter by Journeyman Pro, 15A Male Plug (5-15P) Converts to 30A Female Connector (TT-30R) 24 Inch Inline Extension (15Male-30Female (L5-30R)) - Amazon.com
Arcon 30-amp, 110-Volt Power Extension Cord
110-125V 15A AC RV Marine Power Inlet Port Plug 18" Extension Cord Trailer Plug | eBay
Amazon.com: Rophor 50 amp to 110 Adapter RV 50 Amp to 20 Amp Adapter Cord, 4 Prong NEMA 14-50P Male to 4X 5-20R Household Outlet Female with Dust Protection Caps, 1.5 FT : Patio, Lawn & Garden
6 Outlet Power Strip with 15' Cord - 3-prong - 6 x AC Power - 15 ft Cord - 110 V AC Voltage - Strip, Wall Mountable - Platinum - Thomas Business Center Inc