For those days when a fish-on-my head is not the look I'm going for, I made this Floppy Fair Isle hat. It was really fun to knit, I made it all from yarn in my stash (which gives me a thrifty thrill) and it is nice and loose, so doesn't create horrible hat head. I only used four colors of yarn, rather than the five called for in the pattern because the other worsted weight yarns in my stash clashed, but I think the colors and patterns turned out fine with four.
This hat works great for me, but I have a big head and thick, curly hair and I can imagine this hat being way too big and sliding over the faces or off the back of the heads of people with a smaller noodle circumference or who have fine, silky hair. As the name says, it is quite floppy, so much so that Brian commented that it would be a useful hat to wear when produce shopping in case you need a place to store an extra cantaloupe.
I'd love to make another one of these for someone, but need to find a big-headed, big-haired recipient who is fond of cantaloupe.
The pattern can be downloaded here.