I took a mystery quilt class and the cutting instructions were for 10" strips (I think). I decided that I would use some raspberry and chartreuse fabric that I had been collecting for several years in my attempt to do some stashbusting. I was rocking along and about halfway through the class, the instructor revealed the quilt. It was 2 1/2" squares (similar to a watercolor quilt). I was mortified...my beautiful fabric cut into tiny pieces so that no one could see the beauty of the fabric!!
I decided to stop what I was doing and ended up making hourglass blocks instead. I was heartbroken but it taught me a valuable lesson. I just don't think I can relinquish control and do anything that is a mystery ever again. I want to know the outcome so that I can choose my fabrics accordingly... :-(