Lon Lon Ranch Key

The Spare Key is a quest item from The Legend of Zelda: The Minish Cap. It is the spare key to Lon Lon Ranch.

At one point, Talon manages to lose the key to the ranch house. Link must assume Minish form and sneak inside the house to find the Spare Key. When Link returns it to Talon, he's allowed to pass through his house to enter Lake Hylia.