HEMYLU Elastic Cord 1/8 Inch (3MM) x 17FT, Black Elastic String Bungee Shock Cord with Nylon Sleeve and Heavy Strength for Crafting DIY Sewing - Amazon.com
AC WORKS 50ft Super-Duty L5-30 Cord 50-ft 8 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
3/8" Solid Rubber Cord - Black - Buna 70 Shore A Duro - .375 Inch (9.53mm) | eBay
125 FT 8/3 SOOW SO SOO SOW BLACK RUBBER CORD EXTENSION WIRE/CABLE | eBay
Cerrowire® 25' 8/3 SOOW Portable Power Cable at Menards®
100 Foot 6/3-8/1 SOW Rubber Temporary Power Cord, 50 Amp
White Solid Silicone Rubber Cord Seal O Ring Cord Dia. 0.8/1/2/3/4/5/6/8/10-25mm | eBay
8/3 SOOW SOO SO Black Rubber Cord Outdoor Wire Cable Flexible Wire/Cable - Wire Wire Electric Supply
HEMYLU Elastic Cord 1/8 Inch (3MM) x 33FT, White Elastic String Bungee Shock Cord with Nylon Sleeve and Heavy Strength for Crafting DIY Sewing - Amazon.com