Mixed-breed cats, with their beauty and stature, are causing a craze for those with a fondness for felines.

Breeder Simon BrodieBrodie used a "secret recipe," to mix an African Serval and Asian Leopard cat with a domestic cat, to create the world's most expensive feline hybrid.

The Ashera, an exclusive product of Brodie's firm Lifestyle Pets resembles a little leopard and can weigh up to 30 pounds. But it's more suited for lounging than stalking prey.

"They are very friendly, very affectionate," Brodie said.