My family used to have a cat named Grayson. He was the brother of our other cat at the time, Booger. For a short time, Grayson was known as Scrotum. No lie.
We also had Teddie and Smokey. They had kittens together (KITTY INCEST! o_O), one of which was named Oscar.
Then my brother has had cats named Gizmo, Spritz (who we swore was an alien), Sparks, Switch, and Phantom.