The tabby cat is a purchasable pet at Eeylops Owl Emporium & Magical Menagerie. It is sold at 9 Galleons. When bought the tabby cat becomes your icon.
Description[]
"The tabby cat has a distinctive patterned coat which can have grey, brown or red stripes."
Pottermore PlayStation Home[]
On Pottermore PlayStation Home, the Tabby Cat is one of the five cats available for purchase at the Magical Menagerie. It must be purchased with real money and costs £2.39.
When purchased, it will walk alongside the player's avatar in the game.