Those are items that were given out randomly during the Apple Drive by Phaeda without Kir's knowledge. You had a random chance of getting one of four items every time you handed in apples: Stoor Treats, Iko Treats, Pira Treats, and Dhani Treats. They're based off the Uldavian Fruit of the same name, which can be gotten in Kir's Prize shop.
Stoor Treats: Speed Stoor: Pira Treats: Power Pira: Dhani Treats: Defense Dhani: Iko Treats: Intellect Iko: