Another can be found in Hyrule Field inside a Secret Grotto nearby the entrance of Lake Hylia, selling a Piece of Heart. One Scrub can be found in Dodongo's Cavern, selling Deku Shields.
They can be found underground, selling items such as Bombs, Potions, Arrows, and Deku Nuts. In Ocarina of Time, Business Scrubs appear in a multitude of places.