That's weird, because I got my wooly nylon at JoAnn's. Did you ask for it, and they said they didn't carry it? Were you looking in the yarn section or thread? It would be with the sewing threads. Maybe even with serger supplies. I checked the label on mine to see if perhaps it's called something else. Nope, the only difference I see is that it's actually spelled "woolly." Sorry, I don't know what else to recommend, except maybe online sources. JoAnn's has stuff online that they don't sell in their stores. And Amazon has plenty of sewing supplies, too.