This is based off of my Do It Your Way Afghan pattern. I increased the squares to 4 rows instead of 3 and added a border to the blanket. One row sc, one row hdc and one row shell stitch. The shell stitch link is to a solid shell blanket, but the basic premise of how I did my shell stitch row is there. I had to fudge on a couple of corners because my numbers didn't work out perfectly. I also put 5dc into the corner ch2's.