I, too wore feed sack dresses and skirts and frequently went with my mother to help choose the "fabric." One of the funniest occurrences in using feed sack material was when I had 3 brothers all in the navy in WWII. My mother made each of the brothers 2 pairs of boxer shorts from feed sack fabrics, featuring a girl in a bath tub, covered by bubbles of all colors. Only the head and shoulders showed. The brothers were razzed and envied by their ship mates, but they enjoyed their notoriety!