My son wants me to make a memory quilt from 2 nascar child size jackets with lots of patches and just a couple of T shirts. I also am putting pictures of the little boy on the quilt as well. All the pictures are 7 inch square and of course the jacket pieces will be odd sizes. My question is since the jacket is naturally of heavier fabric, should I back the pictures and T shirt fabric with similar weight fabric as the jacket fabric? This will be a QAYG project with hopefully a light-weight backing. Any advice will be appreciated.