Well this is embarrassing.. I have been meaning to make some of these felt-covered barrettes for several years (they come from an Angry Chicken blog post from 2007)! These are cute little felt sleeping bags for plain metal barrettes. Most of them I hand sewed a button on, but for the light blue ones I sewed on 3 teeny tiny jingles bells. Fun and easy, try making some yourself if you haven't already.
PS She won't be wearing them all together like this, just for displaying them for the photo to share with you :o)