This might be fun.
My eldest boy = ThunderNutZ
My eldest girl = MonkeyNutZ
My youngest girl = NumbNutZ
The top two kids, those are their XBOX Gamer tags. In fact, they answer to them better than their real names.
When I pick them up from day care, I say "Jaffa, Cree!" and they come runnin'. I don't have to say anything else, lol.