Silk neckties make beautiful yo-yos.  I have made yo-yos from silk neckties to enhance garments, adding beads and/or yarns to the centers for yo-yo flowers.  These look beautiful and retain their shape indefinitely - one jacket has been repeatedly packed for travel and the yo-yo flowers still spring back after over 10 years.  Use one of the many yo-yo makers now available to simplify the process.