One of the guilds I belong to has a free table every month. Members bring any scraps they don't want, and anyone can pick and choose from the table. I've found some terrific scraps, and donated some that no longer appealed to me. It's interesting that one person will pass over a scrap that another person happily pounces on. Some of the "scraps" are FQ size or larger, all types and qualities of fabric, and sometimes there are orphan blocks or even whole quilt tops.