Heat oven to 375°F. Unroll pie crust on work surface. Cut into 16 wedges. For 1 hat, spoon about 1/2 teaspoon chocolate chips along narrow edge of 1 wedge. Starting from same edge, roll toward point, enclosing chocolate chips and leaving 4 inches crust unrolled between roll and point. Place on ungreased cookie sheet 1/2 inch apart. Bend and shape hat as desired. Repeat with remaining dough wedges and chocolate chips to make 16 hats.