I bet the book doesn't mention jelly rolls because traditionally, you'd have all the braids the same and there typically wouldn't be enough of each color in a jelly roll to do that. I love your idea! Fusions are my favorite blender and I can't wait to see it finished! I like the stripe floral separator you are doing. Other nice finishes I've seen are embroidery and applique. They look great on the separators. Have you thought yet about how you will quilt it?