There’s a couple of auctions running on TradeMe for some interesting looking 28mm poseable white metal armatures. These are evidently from Ebob Miniatures, a German? or British? manufacturer by the looks of it.
I’ve been tempted to try sculpting in the past, but working up from a bent wire armature has always seemed rather daunting. These would seem to be the ideal way to experiment without having to worry too much about getting the basic proportions right.
So I just ordered two packs of five and it only cost $15NZ including shipping.