well Gary, i am a fairly new 'lurker' on the planet and wanted to inro myself and say hi.
like many i have read all your sbs articles and find them to be equally inspiring and a sure fire cure for my natural laziness!
i work mainly in Duro but have had some poly clay in my drawer for a while and like to use it now in addition(thanks to you et al on here)
Aly Morrison of G.W uses sculpey too(as do many)- he told me that "sculpey likes green stuff" and so he uses it as a base material- not only to give scupley something to 'key to but as an internal 'radiator'
you could use Duro (because of the scale you prefer) as a base too by cutting the pieces fron cured g.s and covering with sculpey.
the best thing about the green is its' bonding properties i find. you could add roughly 'rolled' out fingers shaped in to a position of choice the carve of the waxey surface before driilling your 'flat' palm on the ends and either superglue in the 'fingers' and covering in sculpey.
i'm no pro but as i was taught g.s, its one of my favesbut people get frustrated by tis properties i think.
for smaller hands you can roll out some G.S to desired thickness, leave for thirty five mins with no heat then xacto out your hand and use the tip of a blade to postion the fingers and allow to cure naturally. this allows you to negate the use of wire if you so wish.
any-hoo! trying to make an effort to join in these things now, so hope to get to know some planeteers and help out and stuff.
all the best gary(and populace) == timo