In a large bowl, blend shortening and sugar; add eggs, vanilla and milk. In a separate bowl, mix remaining ingredients. Add flour mixture to shortening mixture; stir until well blended. Divide dough into 3 or 4 balls; wrap in plastic wrap and chill for at least one hour. Roll out dough 1/4-inch thick on a floured surface. Cut out shapes with cookie cutters. Transfer to ungreased baking sheats. Bake at 400 degrees for 7 to 9 minutes. Cool before frosting. Tint Powdered Sugar Frosting black; spread on cookies. Sprinkle with black sanding sugar while still wet. Add eyes with gren gel icing.