[BubblPopElectrc]

I like that idea! You could buy a bunch of styrofoam balls in a couple of different sizes to form the popcorn- glue them up at the top of the "box" as if they are flowing out (or just for the hat). Cut some of the styrofoam balls in half and glue them onto larger ones. You would have to use acrylic paint and regular water-based glue as using spray paint and/or a glue gun would make the styrofoam dissolve.