Noticed Something Funny...

So today on the GW site they have an article on box cover art. It was pretty cool to see all of the editions on one page. Anyway they have the IoB cover art as a wallpaper and proceeded to download it. When I took a gander of the art in all its glory I noticed something rather amusing in the background...

Little winged rats carrying censers! Ha! Anybody else notice this? I so want to model this now!