Startech PXT1001M StarTech.com 1m (3ft) Power Extension Cord, C14 to C13, 10A 125V, 18AWG, Black Computer Power Cord...
12-Foot Village Extension Cord - Ul
Manufacturer Based Outdoor Extension Cord Custom length, Color Cords,UL Listed - Cablesgo
Found in two of the three bedrooms at our Airbnb; both ends plug into an outlet but nothing else. The silver tag says "extension cord" and the circular end of the plug