has purchased a CMY acrylic cube
Being acrylic this cube doesn't need beveled edges like the glass models, leaving you with no line transition between colors and a little less weight. I'm quite pleased with it, in the picture you can see it showing off a lot of its color combinations on top of to a 50mm clear glass cube. Each parallel side has either cyan, magenta, or yellow films on them, allowing you to see that color when viewing straight on, or a combination of the sides when viewed at an angle. It's an excellent demonstration of color theory (in particular print CMYK colors). The price of this cube was much quite reasonable compared to some others, and I'd recommend it for a desk toy or as a novelty gift for an artist.