Run your working yarn through the live stitches you have left- you'll have to cut it off with a tail of a few inches, thread it on a tapestry needle and run it through the live stitches. Then you can drop the stitches off the needle and pull the tail tight. It closes up the top of the hat.
Mommy to two wonderful girls
"I don't have to conform to the vagaries of time and space, I'm a loony!" -Campbell Bain (David Tennant) 'Takin' Over the Asylum'