No, not from Greenstuff World, not that I know of anyway. Other, smaller companies I talk to, but those are still trials and may not even be released.
Yeah, drawing and pushing a pencil etc over foam doesn't work for me, any downward pressure on my wrists is a big nono, and I can barely hold a pen for a minute or so, so this too would take forever. For my high fantasy stuff I prefer the loose block on a styrofoam core method. Lightweight, quick to build, can work till I am too tired. But lots more in the pipeline.