Amazon.com : Silver Nail Foil Wraps polish strips stickers for Fingers and Toes by Miss Silver : Nail Brushes : Beauty

These Polish Strips should work as well. Otherwise try http://www.amazon.com/Silver-Nail-stickers-Fingers-Miss/dp/B008AHWG3O (but I havn't any experience with it)

As seen in
  • nail polish nails silver nail art nail accessories