The Necklace Fairy Fastener is a 2-part heart-shaped metal necklace-clasp adapter, with an O-ring on the outer edge of one half and a clasp on the outer edge of the other half.

Some, like a pearl necklace given to the Queen, are nothing short of breathtaking. Others, like an old wheel nut given to the Duke of Kent, are verging on the tacky. Every item on an official list ...