Looking at your responses, I guess my original question could have simply been, "Is there a way to do wavy strata quilts?"
Prism99, thank you for your detailed response! It sounds doable, but OMG the work and time! I also thought along the lines of making large, curvy, strata panels and then cutting the squares out on-pointe, but was just hoping for an easier way. I'm afraid doing it block-by-block might end up looking too "planned."
Hmmmm . . . . think I need to take some long strips of scrap fabric and start playing . . . I'm guessing not much house-cleaning will get done today!