Daltile has a fun–and free–on-line mosaic design tool. Just pick and click to create images on their ‘mosaic canvas’. If you’re feeling particularly uninspired, they even have A BUNCH of patterns to get your creative juices flowing. Just click on ‘Patterns’, find the one you want, pick it and then click on the colors of your choice to fill in the squares. The downside is there’s no print feature, but there is always ‘Print Screen’!