What is bon cats?

As an AI language model, I don't have access to any specific information about "bon cats". However, the term "bon" is not a commonly used word when referring to a cat breed or type. It's possible that you may be referring to the "Bombay cat," which is a breed of cat that resembles a miniature black panther.

The Bombay cat was developed in the 1950s in the United States by breeding black American Shorthairs with sable Burmese cats. Their coat is short, sleek, and shiny black, with copper-colored eyes. They are known for their affectionate and playful nature and are often considered "lap cats" because of their love for cuddling with their owners.

Overall, the Bombay cat is a popular breed due to its unique, exotic appearance and friendly temperament.