This one has a rather strange premise, but it is really the title that gets me. Multicolored Post Its by Wingwyrm: Harry Potter's animagus form is the Kyuubi no Yōko. And now he's stuck in a little boy named Naruto. So he helps the kid out. And boy is the kid hyperactive. Gen, WIP, AU.
I'm not a tremendous Naruto fan by any means, so I'm not about to read it myself, but still... what a title.