A friend asked me to knit her son a dinosaur hat to match his mittens... which I apparently never blogged. The fact that her kid is adorable is a bonus.
Dinosaur hat, knit in Kelley Green Vanna's Choice
I used Ann Budd's Basic Hat pattern for 18 months through 4 years. The yarn pretends to be worsted, but the gauge is closer to a bulky. I had to frog and reknit because it was much too big the first time around. (That's what I get for not swatching.)
For the dinosaur spikes, I used this pattern and sewed them to the top of the completed hat. It was cute when I finished it, but it's much, much cuter on Luke's head!