I'm not a stickler for originality but i think someone on this board has a neko, and also a Lucy and Ethel. My thought was of different spices for these two- Ginger, Nutmeg or Cinnamon come to mind for these. The shelter where rocky came from tends to name litters with theme names- some ideas are nature names, like acorn, walnut, ash. Also candys, like trix and smores. Salt and pepper are cool names but they don't fit your kittens. My friend had an akbar and jeff! What about female characters from your favorite book?