Joy Pendant

From Zelda Wiki.org

Joy Pendants are spoils from The Wind Waker. They are most commonly dropped by Bokoblins, though they can also be found in Treasure Chests. Their main purpose is to give them to Mrs. Marie, the schoolteacher on Windfall Island, who will reward Link in exchange for certain amounts.

• 20 Joy Pendants: Cabana Deed
• 40 Joy Pendants: Hero's Charm

Joy Pendants may also be sold to Beedle for a pittance of rupees. They sell for approximately 5 rupees each.

These pendants are said to flock to those who spread joy, like butterflies gathering around nectar-filled blossoms.

— Inventory description