Here's how I named mine:
Jake's daddy's name is Brody (Broderick on his papers). I love Brody, he's a sweet little guy.
I wanted to include his dad's name in his registered name, so I named him "Sir Jake Broderick Little Knight".
Jackson's coloring is darker and his daddy's name is Tyson Lee so I him "Sir Jackson Lee Dark Knight".
I don't know if that helps to give you any ideas. Good luck with finding a name you like!