Thread elastic thru to make hair scrunchies.
Headbands to hold hair back.
Braid several together to make belts.
Put a ring on on end and make key fobs.
Sew them together to make the purse for the purse straps.
Weave and tie off ends (or sew around edge) to make hot pads.
Doll leg warmers!
That's all I can brainstorm in 2 minutes...