Hmm, with an orange tint to it, yeah, that sort of does it. The thing is though, it lacks the sort of "organic" feel to it if I do it in 3D (non-uniform cruves, finger prints etc.)
I really need something that can show the unevenness of the surface without having to manually apply it...
Which probably means I should just go an get some plasticine and not bother testing it before hand

There doesn't seem to be anything that gives a clay-ish look at all, other than that kind of shading (or noise reduced rendering) - both of which are too clean looking.
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