17. Fold up the bottom at the same spot you created on the paper pattern, so that the bottom flap overlaps the edges of the side flaps, between 1/8" and 3/16" (3mm and 5mm).  18. Fold over the top—again, recreating the same shape you created in paper, with the top flap overlapping even more of the sides, so that the point is about 5/8" (16mm) from the bottom edge. Iron both creases to press.  19. To close the gap in the seam where you turned the work right side out, tie a knot at the end of some sewing thread, thread your needle and insert the needle from inside the work, going out at one end of the gap. Bring the needle directly across to the other folded seam and make a stitch about 1/6" (2mm).&nbsp;  20. Drop back directly down to the side you started on and create a second stitch. Keep the thread pulled tautly to close the seam as you continue to the other end of the gap.&nbsp;