I made it into Neil Gaiman's online journal.
Here is what I said and his response.
In doing a search on the Narnia action figures by Gentle Giant Studios I saw that they are also doing Mirrormask action figures. I have only been reading your journal for a couple of months, so if you mentioned this, I missed it.http://www.entertainmentearth.com/hitlist.asp?theme=Mirror+Mask(I am a brand new Neil Gaiman fan after hearing Coraline on a long car trip.)Dona
Not sure they've been mentioned for a while. So yes, Dark Horse are doing MirrorMask models (the ones in the pictures are early prototypes.)