Sharkk Switching Adapter (5V/1.5A) Wall Charger Single USB - White (HYP-15-1500) (Used) - Walmart.com
LC to FC Simplex Fiber Optic Coupler Singlemode Adapter - Beyondtech
Commercial Electric 15 Amp Single Outlet Grounding Adapter, Gray U-09 - The Home Depot
Travel Smart by Conair 2-Outlet 1875W Converter Set TS703X B&H
AC WORKS 1.5ft Piggy-Back NEMA 14-50P to NEMA 14-30R 50-Amp 4-wire Single To Single Orange Basic Piggy-back Adapter in the Adapters & Splitters department at Lowes.com
LC Female to SC Male Single-mode Fiber Adapter - FS