I had this pretty baby yarn and it was screaming "hat!" at me. I started knitting a k2 p2 ribbing and then just winged it stockinette the rest of the way. The problem is that now I'm not sure how long I need to make it before I start decreasing and how long total it should be for an average baby's head. I have no babies for reference or even anyone expecting (at least at the moment) but I'm just in a baby knitting mood.
Here's a pic:
It's about 5 inches long from cast on edge at the moment.