I finally finished the rainbow blanket from my previous post. Additionally, I made a big sunburst granny square, which has a side that is as wide as 1/3 of the width of the blanket and 1/4 of the length of the blanket. Then I slip stitched this granny square to the top center of my finished blanket, but left one side open. This way I can put the blanket inside the granny square so it turns into a pillow. This is the reason why I wanted my blanket to have dimensions in a 3:4 ratio.