Yes, a cute little anime girl version of Cthulhu. Along with several other Lovecraftian chibi girls.
Warning: not everything on that page is worksafe (although most is hardly titillating unless you're a pedo freak). The image under CG marked "new" in particular will make you claw your own eyes out. I'm typing this with the aid of a screen reader.
In other anime-cutesy news, figurines of the OS Girls are available for purchase. There is also a dedicated OS-tan image board on the English-language Wakachan site (risen from the ashes of iichan).