This may not be as much fun, but we always try to name our cats with simple names that they will respond to. That is why we went with Milo and Toby for our boys. Phonetically, they have high and low sounds so they are easy to recognize.
Toby's name was Morgan in the shelter, and not only was it too serious it didn't have a "ring" to it.
Milo is a Russian Blue, and if we were to have named him Cobalt we would have simply called him Coby for short.
Our boy, Toby
Milo, Sasha and Misha, we miss you!