Cologne Sample Holder

I got a bunch of cologne samples from Sephora, and I wanted a way to keep them together and organized.

The diameter of each hole is 11.5 mm, which I found to be just right for most cologne sample bottles. However, one bottle is barely too big to fit, and a few others fit in very, very snuggly. You might want to bump the diameter size up to 11.8 mm or so.