Well hello again! You always have fun projects.
If you look at the quilt in the background, you will see that each row ends with either a wider or a skinnier block. You always have the same number of spacers, but you either start or end wide, alternating each row.
(edit: You could just sew two pieces of the sashing together, I'd probably cut it the size I wanted without the seam)
I still don't have this quilted down... the bug jar was my first ever internet swap. 1998ish?? goodness...
https://www.quiltingboard.com/member...14-621638.html