I taught myself to knit about a month ago using a beginner's kit I got at Michael's. I'm in the middle of making my first scarf and hat set from the same book. It's not hard, I just don't have a lot of time right now. Next I want to learn how to spin my own yarn.

You also could take up beading. There are about a million different types of things you could do (making jewelry, sculptures, decorating clothing, etc.). A great resource is http://www.firemountaingems.com.