The only funny thing I can think to do with the names is to name Red XIII Nanaki. When you go to Rocket Town, and you have Red XIII in your party, he will introduce himself to Shera (that's her name right?). He will say, "I'm Red XIII, also know as Nanaki." But if you name him differently, he will say "I'm Nanaki, also known as Nanaki." Not the most humorous thing in the world, but it's all I got.