1. Layer pillow top, batting square, and muslin square. Quilt as desired. For this project, a diagonal grid was machine-quilted through the center of the squares. Trim quilted pillow top to 10-1⁄2" square.
2. Press under 1⁄4" along a long edge of each green polka dot 10-1⁄2×8-1⁄2" rectangle. Press same edges under an additional 2" and topstitch in place to make two hemmed pillow back pieces.
3. With wrong sides together, pin pillow back pieces to pillow top, aligning raw edges and overlapping hemmed edges. Sew pieces together along all four outer edges to make pillow cover (Pillow Assembly Diagram).
4. Bind with green polka dot binding strips. Insert pillow form.