parkworld 1.5 ft. 10/3 3-Wire 50 Amp Range/Oven 3-Prong NEMA 10-50P Plug to 30 Amp Locking L6-30R Adapter Cord(10-50P to L6-30R) 60240 - The Home Depot
parkworld 3 ft. 6/3 Wire Gauge 50 Amp NEMA 10-50 Extension Cord 884838 - The Home Depot
parkworld 10 ft. 10/3 3-Wire 50 Amp 250-Volt NEMA 6-50P Plug to 30 Amp 6-30R Welder Adapter Cord 886559A - The Home Depot
Conntek EV1050T NEMA 10-50P to 14-50R EV Pigtail Adapter
SURIEEN NEMA 10-50P Male to 10-30R Female Dryer Plug Adapter, 1.5FT 3 Prong to 3 Prong Dryer Adapter Cord STW 10/3 250V - Newegg.com
Amazon.com: Parkworld 885484A-10FT EV Adapter Cord NEMA 10-50P to 14-50R 6AWG/3C, 50A (ONLY for Tesla UMC or Other EV Charging, NOT for RV) (10 FT) : Tools & Home Improvement
WEN 15 ft. 10-Gauge Transfer-Switch-Ready Generator Adapter Extension Cord with Light-Up Plug (converts 50A 14-50P to 30A L14-30R) - Walmart.com
Superior Electric RVA1561 3-Wire 50 Amp Range Cord NEMA 10-50P, SRDT 6AWG/2 + 8AWG/1, 6ft - Walmart.com
NEMA 10-50 3 Prong 50 Amp Extension Cord for Dryer Outlets