I have:
(0) Plushies/Figures of the Pets I own
(1) Yarn
(3) Fake Costumes
(4) Costumes
(5) Potions
(6) Enchanted Plushies
(7) Stars/Constellations
(8) Pearls
(9) Gumballs
(10) Blood
(11) DNA
(12) Minipets that do not have finished collections
(13) Minipets that have no additional colors or matching partners
(14+) Minipet Categories:
(14) Bugs
(15) Jokemo
(16) Neek
(17) Sue
(18) Velox
(19) Pancakes
(20) Ducks
(21) Pumpkins