Anyone for clay?

I found these photos in my computer.  A while back, I was making some decorations with polymer clay and I was experimenting with color mixing.  Do you do this too?  I was attempting to get the correct color of dusty red.

I need to cut out tiny even circles of different colors to see how the colors came out.  I had a color in my head and was trying to match it!  The tough part is remembering the formula and documenting it to find it later.

Of course, now I cannot remember what item I made with it.