Pre-Wired Christmas Tree Lights
![wired-christmas-tree pre wired Christmas tree lights](https://www.innovation-creativity.com/wp-content/uploads/2020/05/wired-christmas-tree.jpg)
Pre-Wired Christmas trees, made of plastic and with built-in light sockets would eliminate all those unsightly cords and the tedious and drop job of stringing them.
By Thomas Zadlo, Trumbull, Connecticut
December 1962
I think this is a modern-day implementation of this idea, available on Amazon. (affiliate link)