Chapter 2 of Itty-Bitty Hats: cute and cuddly caps to knit for babies and toddlers, by Susan B. Anderson is "Animal Hats". Since I'm knitting my way through this book, I'm knitting up animal hats for February.
I made this bunny hat with a left over ball of Classic Silk yarn in a gray tweed and I tied the ears with some grey/rose gingham ribbon. This is the 6-12 month size.
Cute as a bunny wouldn't you say?