Toad Bros. Bazaar

From the Super Mario Wiki

Toad Bros. Bazaar is located in the central plaza of Rogueport in Paper Mario: The Thousand-Year Door. It is run by the Toad brothers Thriff T. and Plenn T. The items on sale are Honey Syrup, Tasty Tonic, Fire Flower, Sleepy Sheep, Fright Mask, Contact Lens, and the Super Luigi Series.

Later in the game, Thriff T. leaves Toad Bros. Bazaar and opens his own shop on Keelhaul Key.