I've never used toons. I have little interest and prefer realistic art. However, they install with all the G9 stuff. Today, I was cleaning up my install and happened upon G9 Toon and saw it has an anatomy folder and toon anatomy subfolder. Do toons have anatomical elements? A quick search didn't turn up any. Just curious.
There's a toon skin addon kit at Renderotica. You can also convert existing iray skins to toon skins pretty easily - no tools and not much skill required.