In a large bowl, cream butter, cream cheese and sugar until light and fluffy. Beat in egg and extracts. In another bowl, whisk flour and baking powder; gradually beat into creamed mixture. Refrigerate, covered, overnight., Preheat oven to 325°. Shape dough into forty-eight 1-in. balls, forty-eight 3/4-in. balls and forty-eight 1/2-in. balls. On ungreased baking sheets, place one ball of each size, side by side, for each snowman., Bake 18-20 minutes or until light brown. Remove from oven; cool on pans 2 minutes. Press on chocolate chips for eyes and M&M's for buttons. Carefully remove from pans to wire racks to cool completely., For frosting, in a small bowl, beat confectioners' sugar, extract and enough milk to reach a piping consistency. If two colors of frosting are desired, transfer half of the frosting to another bowl and tint each with a different food coloring., Cut a small hole in a corner of a food-safe plastic bag; fill with frosting. Pipe scarves on snowmen. Use frosting to attach chocolate kisses for hats.