What to name my 3rd baby rat?

i just went to pick up my two baby rats that i have been waiting for.. and i already had names picked out for them.. well when i was leaving my sister inlaw decided to sneak another baby rat into the box when i was in the bathroom.i didnt notice tell i was already out to the car..and well i decided i would keep it too. it was just so cute.. but heres the problem..i have names picked out for the first two but not the 3rd.. the other's names are moo moo and moo shu all three are girls.i was thinking of naming the 3rd mein.. like after chow mein noddles..lol. but i dont know. i kinda want to keep it in the cow family because they all are black with white spots..