User blog comment:AngelWings13/Is there any vocaloids that are a only child?/@comment-4238265-20130716030640

Well, now I'm confused. Do you mean Vocaloids that look like children/has an age that officaly states they're a child, or a company that only made a single Vocaloid voicebank? If you mean the second, than my first comment has that answer. If you're actually asking about the first, than follow Adept-eX's words under this comment.