Use fleece, cotton or flannel fabric.
I cut out 8x8 squares.
Sew them together right side out with at least a 1/4" seam.
There is no batting - just the back.
Sew the back to the front with at least a 1/4" seam.
Using scissors cut the fabric ever 1/12" just down near the seam (but not right up against it).
Let the raggy quilt be alive!