A tragedy in the making...the poor pup is not a play toy and a five year old has no concept of how breakable it is.
No, there is no such thing as a micro mini yorkie as far as the AKC is concerned, only a greeder's name for a pup that they don't care about the health and well being of, they only want to breed for tinies due to the big price tags people will pay.
How old is the pup?