Assemble Pillow Front and Back
1. Referring to Diagram 2, lay out four red print 4-1/2" squares, six red triangle-squares, and six assorted triangle-squares in four horizontal rows; note position of red prints in red triangle-squares.
2. Sew together pieces in each row. Press seams in one direction, alternating direction with each row. Join rows to make pillow front. Press seams in one direction. The pillow front should be 16-1/2" square including seam allowances.
3. Referring to Diagram 3, position light blue rickrack on pillow front, centered along the diagonal row of red print squares; pin in place. Using light blue thread, topstitch 1/8" from wavy edges of rickrack. Trim short ends of rickrack even with pillow front corners.
4. Lay out 16 remaining assorted triangle-squares in four rows (Diagram 4). Repeat Step 2 to make pillow back.