Here's a Betty Blais pattern: When I went to it, it wouldn't let me go to shopping. Hope it works for you.
https://www.cotton-picking.com/Paper...ltPatterns.htm
You may be able to figure out a block of your own by looking at this:
https://mujerescreativasdelvalles.bl...t-pattern.html
I found this pattern but it is for only one style of Kimono & it's very small...2" x 3" finished block. It could be enlarged & you could make each block from different fabric (making them appear to be different).
https://www.gourmetquilter.com/produ...0ec6c91f&_ss=r
Here are some other sites for patterns:
http://equiltpatterns.com/yukata-kim...block-pattern/
https://www.etsy.com/listing/1728117...per-pieced-pdf