I sewed with friends on Tuesday and my first order of business was to get the Tumbling Blocks pieces on the design wall. Originally I planned to just mix the colors up, but after laying out several of the color sets as I cut, I decided I liked the waving rows better. The pattern I am using calls for 11 vertical rows of blocks for the twin, but I decided I wanted it a little wider, so plan to do 13 rows. I have 9 different color groups, so I will need to make more blocks of certain colors. I want to finish out the blue row on the right, that will make 11 rows, then not sure what else. There will be partial rows on the ends and I haven't decided for sure how to do them. This shows clusters of colors on the left side. I am going to fill in around the edges with black.