In a mixing bowl, cream shortening, butter and brown sugar. Add egss, one at a time, beating well after each. Beat in vanilla and maple flavoring. Combine the flour and baking soda; gradually add to creamed mixture. Stir in vanilla chips and pecans. Drop by round tablespoons 2 inches apart onto greased baking sheets. Bake at 350 degrees for 8 - 10 minutes or until golden brown. Cool for 2 minutes before removing to wire racks. For Frosting - in a mixing bowl, cream butter and confectioners sugar. Beat in maple flavoring and enough milk to achieve spreading consistency. Frost cooled cookies. Top each with a pecan half.