Thought you might like the 2012/2013 in-color charts. I did not make the charts but am passing them along. These are modeled after the charts made a few years ago at convention – probably when we had the color renovation.
Print out on Whisper White card stock. Then the first square punch a square of card stock, the second square scribble the marker – I did both ends, the third square stamp an image with the ink pad.