Perfume/Cologne Sample Holder

My girlfriend kept giving me cologne samples that she got in her monthly make-up/cosmetics box. Since some of these are pretty good and I wanted to use them, I came up with a way to store 12 of these at a time. I hope I never have any more than that. Anyways, I hope that this is useful to somebody other than myself.

This should work with perfume samples and cologne samples as long as they are under 11.37 mm thick. That is the largest one I have received, so I'm hoping it's the largest one I ever will receive or I will regret having made this so small.