I obviously don't have a kid since I AM
one, but my boss has a five year old who LOVES to name things. He named a few of our cats Hay Bale (because she's the color of hay apparently) Ugly Butt, and an...expletive, depending on how you use it O_o that happens to be another name for a cat.
He also named his a few horses Blackie Midnight (this horse is now greying out, go figure xD), Ouch (because riding him at a trot was ouch!) , and Kung Fu Panda. Needless to say we renamed a few.