Bear, after the first set of blocks I just started finding stash fabrics that I like. I thought the instructions for gathering the fabrics was rather daunting. Besides that, I want to mix up the colors a bit more. It's a really easy pattern.
Oh- for the centers I just cut 1 3/4 instead of 2 and trimming down. It works well for me. No trimming necessary for those. I do trim the others though.