Thanks for all your names, here is the list thus far. I tried out Flynn today and he came right to me. Seems like he likes AJ's suggestion, but he came to Fritz too. Maybe he likes the hard F sound or maybe he just likes to be scratched on his back. He really is a princely little fellow. If you aren't tired of this game, pick your favorite from this list. Only one, though you could combine two into one!
Mark Jr (MJ for short)
Fritz (his great grandpa is King Fritz)