Master Sword

The Master Sword is the most important weapon of The Legend of Zelda series. It makes an appearance as a furniture piece in Animal Crossing, and reappears in the sequel. However, in the sequel, it had a corresponding sound to it, which is featured in The Legend of Zelda games.

Limited Edition Version
Upon the release of The Legend of Zelda: Twilight Princess, a limited edition Master Sword, a replica of that featured in the game, was sent out over Wi-Fi. It was only stocked for one day, however.