Missouri Star also has a pattern for a churn dash block that uses layer cakes. You need a solid for the background of the blocks also. They used another layer cake, but I just cut my own.
https://www.youtube.com/watch?v=E9i0FndQsco
She used a small sq in each corner. I did not. I used layer cake squares cut in 4ths as my centers. Some of the fabrics would not have had enough contrast to the background. Those I used for centers. I believe this was a Me and My Sister fabric line.