I spent a long time looking for a safe way to store my glasses, where I could also see where each pair was.
After using and downloading a few options, I was never satisfied, so I simply used a template that I thought was appropriate.

On my boxes, you can see a dot on the bottom right of the lid that has the color of the protective glass, so you can see straight away whether you are holding the right pair of glasses and you don't have to search through several boxes.

You will need 6x M4x40 screws for assembly.