I don't think there is a cat alive that is still called by the name given to it originally, they almost always evolve into something else;
Names I have used in the past;
Holly
Pumpkin
Pumpy-lumpkin
Digweed
The Device
Sasha
Burt
Salem
Paul
Smallfaced Cat
Bigfaced Cat
Tiny
Ruby
Rubamatic
Rubatron
Buby (pronounced with a double O sound)
Boobatron
Boobatronic
or
"NO I'm not feeding you again, you scamming chancer"