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
Woods® Push-Lock Extension Cords w/ Black Plug – Woods Home Products
How To Keep Extension Cords Connected - D.I.Y. At Bunnings - YouTube
Qwik Lok Professional Straight Blade Locking Connector Eliminates the Need for 'Twist-Lock' Devices