Sportsman Series 30 ft. 125/250V 50A Marine Type Pigtail Extension Cord at Tractor Supply Co.
Amazon.com: IronBox Electric - Heavy-Duty 5-15P to C13 Power Cord - 3 Prong 15A 125V 14/3 SJT PC Power Cable - Power Cord for Computer, Monitor, Subwoofer, Amplifier - Cable for Power
Sportsman Series 25 ft. 125V 30A Extension Cord at Tractor Supply Co.