Mid to late 1970s necklace made of small round white shells.
Worn by surfers, it caught on and was a big fad. Worn usually snug around the neck; they were a status symbol until about 1980; they came back in style for a short time many years later.
Someone you love with all your heart. Someone who has been through it all with you. Your first for everything and will almost end up being your last as well. Never leaving your side, regardless what you have put them through.
Girl: "Sarah is so lucky to have Davis in her life. He's definitely her Puka Bear!"