I've been in love with Susan B. Anderson's Itty Bitty Hats book. I got it for Christmas and have fixated on the Candy Cane hat. I haven't done the striped look she instructs in the book, but instead went with flecked hats and solid poms. The green one is a recycled old sweater of mine with sparkly forest pom, and the newborn-sized one is knit with double yarn strands - a solid worsted weight white and a sport weight navy with navy pom.
The green one is lil' b's, he loves it and wears it everywhere. I made him a coordinating set of mittens (no pic yet) with a stripe of the green fleck on a cream wool background, also made from a recycled sweater.