Boomerang Dealer

The Boomerang Dealer is a character from The Legend of Zelda: Link's Awakening. He is a Goriya that lives in a cave on Toronbo Shores. He can only be seen with the use of the Magnifying Lens, and thus, Link cannot speak to him until he completes the Quest for the Magnifying Lens. Once he does however, The Goryia will offer to trade Link the Boomerang for one of Link's curent items.

The Boomerang is extremely powerful, and after the trade has been done, the Boomerang Dealer will plead for Link to trade it back.