Industrial designer Ignacio Pilotto has created this beautiful concept Rubik's Cube with Pantone colour swatches that he calls the Rubitone. Sadly, the Rubitone is not intended to be a commercial product and is, therefore, not for sale.

While you're there, be sure to visit Ignacio's other really cool product designs, like the sharpener ring or the Karate-Kid-inspired Swatter + Tweezers.