I went out and got the cheapest set of fake nails I could find. I then used each of my nail polishes and painted 2 nails the same color. On the back of one of them I wrote with thin permanent marker the brand of polish. This way I could quickly find which polish I was looking for.
When they were dry I punched a hole in all the nails towards the tip not the base. For that I use the Tim Holtz Drill Punch. It drills a tiny hole in just about anything (even metal), I use it to make charms for my projects all the time. For this it was perfect for attaching the nail to the bottle of polish.
I had the second set of nails as a complete reference with names of the brands on them to find just the right shade without having to rifle through all my bottles of polish!