I made Hazel a summer hat before we left for California. It turned out perfectly, though a little smaller than I would have liked so she won't be wearing it next summer. She actually wore it when I asked her to while we were on vacation (amazing since she wouldn't wear it before we left) - hurrah! I was very happy since our little miss is quite fair and tends to burn easily. While it doesn't have a large brim, it at least kept the sun off of her face and head.
I used a free Simplicity pattern found online for a ladies bucket hat and just sized it down a tad. I might make her another one just a little bit bigger to allow for more wiggle room while at the pool.