Starting at shorter side, roll up each rectangle; seal edge. Cut each roll crosswise into 4 equal slices. Place slices, cut side down, on greased cookie sheet to form tree shape. Begin with 1 slice for top; arrange 2 slices just below, with sides touching. Continue arranging 2 rows of 3 slices, then row of 4 slices, then 2 rows of 5 slices. Use remaining 1 slice for trunk.