I guess it could hold other similarly shaped things I guess. I made this as I prefer to be at an angle to use, ignore that the one in the photos is in bits and held together with hot glue, I was in a hurry and didn't want to wait the amount of time it'd take to print with support.
Print yours with support. It's good. Mine also has some rubber feet on it, with the quick keys thingy in it, it doesn't move around on the desk at all.
The author hasn't provided the model origin yet.