Dolly

The Peach Doll is a doll that look precisely like Princess Peach. It belongs to Goombaria. Since it was found in Jr. Troopa's territory, Jr. Troopa probably stole the doll from Goombaria. After Mario returns the doll to Goombaria, he'll get a Star Piece.

Peach Dolls also appear in Super Mario RPG. One belongs to Gaz who likes to recreate Mario's various adventures with dolls. The second doll belongs to Booster. He used it to plan his wedding to the real Princess Peach.