Unroll crescent roll dough into a rectangle. Press seams and perforations to seal; roll lightly with a rolling pin. Spread butter over dough. Combine sugar and cinnamon; sprinkle over butter. Roll up, jelly-roll style, starting with a long side. Seal edge. Cut into 22 slices. To form a tree, place slices on a greased baking sheet with sides touching and cut side up. Place one slice in the top row and two slices in the second row. Repeat with remaining rolls, adding one slice per row, until the tree has six rows. Center the one remaining slice under the last row for a truck. Bake at 350° for 16-20 minutes or until golden brown. Remove to a wire rack. Combine confectioners' sugar and milk; drizzle over warm rolls. Decorate with cherries if desired. Yield: 22 rolls.