Do you have to use them whole? I'm thinking bits & pieces used in a traditional embellished crazy quilt, or trimming on a sun bonnet sue dress, or if they are circles, cut into quarters and used as 'fans' in a square block (sew cut edges into seams, then quilt the fan down to the fabric).
ETA:
Here's another recent post:
http://www.quiltingboard.com/t-133532-1.htm