AC power cord lock

This is pretty simple to print. Large end down and print two instances. No supports needed and I used 20% fill with 3 perimeter walls. The shaft that makes up the pivot hinge is ¼" steel round stock. I used regular Gorilla glue on one side of the hinge, CA would work as well. It is symmetrical so  when flipped over they nest together. I have a commercial injection molded part, but honestly, I like mine better! It is very secure.