Don't limit yourself to using cement tiles just on floors. The beauty and durability of cement tiles make them an excellent choice for ceilings, walls, and for a bath or tub surround. On wall applications, they can be installed floor-to-ceiling height or used at a "traditional-wainscoting" height. Using existing tile patterns, you can customize the colors with from the existing color palette or even customize a color.
See how cement tiles can be used for walls, ceilings, and surrounds: