Picket Fence Pretties Puzzle. Pick your favorite scrappy quilt--we dare you! This is one picket fence that would make the perfect neighbor--adorned with six stunning quilts. Enjoy each one as you piece together a 1000-piece puzzle from Martingale that's just the right challenge for hours of activity with family and friends. About the image: Quilts are by a variety of quiltmakers whose patterns are featured in the book Scrap School by author Lissa Alexander.