I'm going to try and put in a picture of a skirt I took off the internet. It has 3 panels, each of a different print and not necessarily of the same width (we've all seen them and probably worn them when we were kids). The second panel is gathered and sewn to the top panel, and the third panel is gathered and sewn to the middle panel. Long strips of fabric could be done and then cut as needed, to save time and effort.
And, of course more could be used, but I don't think it would be necessary.
I saved the picture with the idea of making some for my granddaughters. It immediately made me think of quilting!
Your project is special in all sorts of ways.
If anyone can tell me how to get a picture on here, please do!!!!
Sorry I am so inept.