If you're looking for a quick project to do in a couple of hours, I highly recommend looking at www.allcrafts.net. Last weekend I made the cute Amelia hat and I was finally able to finish today... only because I needed to go out and buy a button. This was a great project to make using up old yarn from previous projects. The hat that I made (shown below) is great because you make detachable flowers so the hat can match any coat/outfit you wear. So far I've only made a blue flower, as I only use one winter coat, but come spring, I may make a nice green one!(Seen on my head for dramatic effect)
Please note: Should you plan to make this pattern and suffer from a big head like me, be sure to add plenty of extra rounds so the hat can cover your head.