100 Foot 12/3 SJTW Click-to-Lock Lighted Extension Cord | Bad Ass Extension Cords
This is how i got people to stop stealing my extension cords. I added an uncommon 110v twist-lock plug. (I lock up the short segment inside my toolbox) : r/lifehacks
Cord Connector™ Device To Keep Extension Cords Together
Amazon.com : API Extension Cord Lock ClickShield Cord Lock (Black) (Item No. 28CSK) : Pet Feeding And Watering Supplies : Tools & Home Improvement