Special Delivery to Mama

The is an MM3D: in.

Location and Uses
Although it is used only in the Reuniting Kafei and Anju sidequest, the Special Delivery to Mama enables Link to obtain two items within the game.

During the Final Day, the Curiosity Shop Back Room will unlock at 1 PM. When Link enters, the Man from the Curiosity Shop reveals that Kafei went to Sakon's Hideout to get the Sun Mask back, and he had left a letter to Madame Aroma, his mother. The letter can either be delivered to Madame Aroma personally for a Bottle filled with Chateau Romani, or be given to the Postman to receive the Postman's Hat. The letter can also be given to MM3D: in the Stock Pot Inn when he asks for paper, thus earning Link a Piece of Heart, though other letters can be used as well.

In, giving the mail directly to Madame Aroma a second time will earn Link a Fishing Hole Pass.