Originally Posted by PaperPrincess

For 64 HST you need 64 squares: 32 white & 32 of your colors. You cut the 14" squares, and pair them, one white & one color, right sides together. Draw a diagonal line (corner to corner) on the lighter square and sew 1/4" on either side of the line, THEN cut on the line. Press and trim down to 13.5". Each pair yields 2 HST, so 32 pairs yields 64 HST.