Eddie Opara and Brankica Harvey of Pentgram have designed the Pantone 2013 Wall and Engagement Calendars. Using the PMS color chips as image pixels, the designers created a “digitized” seasonal thematic image for each month, much in the way Vik Muniz recreated famous Impressionist paintings with Pantone chips (see here). Each month features a Pantone color and continues with tints of it, each a square for every day of the month.
Cleverly and nicely done, though I have to admit a preference for the images in the engagement version. That donut on the cover is pretty great.
You can purchase the calendar here.