Here is another crochet pattern that I found very interesting. It came from the same Internet source as the Ripple pattern - http://attic24.typepad.com/weblog/hexagon-howto.html.
I am using scraps left over from the hats I knit for Emma and Bobby and yarn from my stash. The yarn is a very soft washable wool - Cascade 220 Superwash. I love this yarn and it comes in such wonderful colors. I don't have a set color scheme and just pick from random for each hexagon with a color combination that appeals to me. I am designing as I go. What fun!