Watson, after I have chopped all those crumbs, I put them on the base fabric that may have a quick sketch on it if you want it to look like something specific, usually add a puff of spray adhesive or just some washable glue stick. Sprinkle the crumbs where you want them. I then puff on spray again gently so the crumbs don't get blown away, carefully lay on top a layer of tule or netting and pin a bit to hold in place. , and just meander away to quilt it all together. You can also couch fancy trim under the foot. Try it, it's fun.