Heat oven to 350°F. Grease large cookie sheet. Place dough seam side down on cookie sheet; form into "S" shape. With kitchen scissors, cut 1-inch deep, v-shaped notches to cover entire top and side surfaces of dough to resemble scales on reptile. Cut 1-inch deep horizontal cut on 1 end of dough to resemble mouth. Crumble small piece of foil to form 1-inch ball. Grease foil and place in mouth opening to hold open during baking.