Set the chocolate-striped cookies stripes down on a wax-paper-covered tray, spacing them well apart.
Melt the chocolate chips in a microwave or double boiler.
One at a time, stick a wooden toothpick into a marshmallow, dip the marshmallow into the melted chocolate, and promptly center it atop a cookie.
Using a second toothpick to lightly hold down the marshmallow, carefully pull out the first toothpick.
Chill the hats until the chocolate sets, then pipe a yellow decorators' frosting buckle on the front of each hat.
We made these tonight...they were easy and fun to make. So cute and tasty too!