Chalkboard Wall Calendar

I know the whole chalkboard wall trend is a little played out, but I couldn't help but think this version was pretty clever. Just mix a little water-based white emulsion with the chalkboard paint to get different shades, and voila! You're ready to paint your own giant, perpetual wall calendar! What do you think? Have you seen any other unique applications of chalkboard paint?

Image/Idea: LivingEtc