And hooves. They can pull carts for moving people and cargo around, or be hitched to chariots and raced. Which is one of the sponsored sports on the island that is broadcast across the world for people to bet on. Where the chariot drivers are catgirls because why not. Also there is beach volleyball catgirl teams and mud wrestling.
There are also various artisans and craftsmen on the island that are regular humans trying to make a living and dealing with the tourists and hordes of catgirls. Of which any one can play, as there are tattoo artists, bdsm gear specialists, painters and sculptors, restaurants, a broadcast building, the Inn, bathhouse, theater, and a general store.
Catgirls love to surround restaurants since food, so they hire bouncers to keep the mobs back. A highest honor a catgirl can get is being escorted by her Master into a restaurant and getting to sit at the table. It's basically a giant Fuck You to all the other kittens.