Well, if he was in the same position as Shining Armor is in the series, I would suggest "Honor Bound" However, if he was a different occupation, I would suggest Moonlit Waltz. As for the cutie mark, keep in mind, sometimes, the name has to do with the cutie mark. Shining Armor=Shield; Moonlit Waltz, you have a moon and a star together. Honor Bound? You have a shield there. It could lean both ways, but as I said, what does he do in the Dancerverse? What is his destiny? How did he get his cutie mark?