Wear a bit of ocean!
gorgeously colored seaglass pieces are all pinned together in a gradient of blue & white colors.  Each is pinned to the next with sterling silver links.  Flip it over and they look like little stitches.  The clasp is a handmade hook and attaches to the end bit of chain to create an adjustable length.  Wear it short at 16", or give it some length all the way to 20".  
This is the perfect 'something blue' for a beach wedding.