Just the thing for the playground: a dragon fez.
Was making holiday gifts, a trio of hats for three kids. The first one was made of fairly thin red fleece. Being a little too floppy it was put aside. Then one very cold night when it was chilly even under the covers I reached for that fleece fez. It was soft and added a little warmth, plus wearing a hat is soothing. Really, it has a subtle calming effect. Since then on nights when it's chilly indoors I'm wearing a version of one of these (without the dragon, admittedly). Think I'll put it on now!