Blin Bling

Blin Bling is a Material item that appears in The Legend of Zelda: Tri Force Heroes.

It is a necklace implied only to be worn by Big Blins and is one of the materials needed to create the Lucky Loungewear at Madam Couture's Shop. Any additional Blin Bling can be sold to the Street Merchant.

The Pirate Necklace
Based on its association with Big Blins and similar design it is possible that Blin Bling is actually another name for the Pirate Necklace, one of the Treasures from The Legend of Zelda: Spirit Tracks.