Put the butter or margarine in the large mixing bowl, and let it warm to room temperature. Add the peanut butter, and mix it well with the butter. Add the vanilla and corn syrup to the peanut butter mixture, and stir well. Add the powdered sugar, and stir until the mixture is smooth. Add the milk, and stir the mixture well. Crush the vanilla wafers with food processor and pour the crumbs into a measuring cup. Repeat until you have about two and one-fourth of crumbs. Add two cups of vanilla wafers crumbs of the peanut butter mixture. Stir until the crumbs are well-blended. Shape into 1-inch balls. Roll into vanilla wafers crumbs. Refrigerate and until firm and chill.