Preheat oven to 350. Prepare a baking sheet with cooking spray; set aside. In a mixing bowl, combine margarine, eggs, and vanilla. In another mixing bowl, combine flour, sugar, and salt. Mix wet ingredients with dry ingredients just until moistened. Spoon dough into a cookie press fitted template of desired shape. Press cookies 5 cm apart onto prepared baking sheet. Bake 10 to dozen minutes, or until golden brown.