If someone in your family uses ponytail bands to tie back her/his hair, ask for the used ones. These are little bungee cords in a loop, and they stretch in a couple of weeks and slip down the ponytail, leading to a fashion failure. But they're still good. Two of them are holding a blade protector on one of my backsaws right now, and a third one's in the "small junk" drawer, for future use.