Coraline and her Other Mother by apol sta.maria. It took second place in a Neil Gaiman art competition in Manila.
Coraline key sighting in New York by Hannah:
I was walking in SoHo today and spotted four Coraline posters, one of which had a key on it! It was tied up on string and stapled to the wall. There were a bunch of staples there, so it looked like there had once been a lot more keys attached.
And finally, Sarah Hatter received a Button Box from Coraline's Other Mother.
*Buy Coraline keys at eBay.