I have been carving the blades for my second 10′ turbine over the summer. Wow this was really an interesting process and takes a lot of time to become good at it. You can mess up a blade in an instant if you are not careful. Here are a bunch of pictures of the process.
You start with a set of blanks that you see above and end up with a complete set of blades mounted on a hub and ready to go. I still need to balance the blades on the actual wind turbine, but I can do that later.