Place large purchased cookies bottom-side up; spread with chocolate frosting. Fill sugar cones with an assortment of small candies. Center and stick the frosted side of each cookie to a cone and spread frosting over the cone. Wrap a thin candy fruit strip or Fruit Roll-Up around the base of the cone to create a hatband; attach a small piece of fruit strip with frosting to form a buckle. Decorate with Halloween sprinkles.