Glasses Holder Desk Clip

I have several pairs of cheap reading glasses with different magnification and until I made this thing, they were piled somewhere in the other stuff that's on my desk. I wanted to be able to find the ones I needed (depending on how close up I needed to see something or how tiny the print), so I made this to clip on the edge of the desk. It printed about 1/2 mm too much gap to fit snugly on the thickness of the desktop, so I actually ended up putting some command-adhesive strips (releasable dou