If you open your eyes theres so many things that could be used to build characters like that, your an artist this piece proves it. Keep it up mate you got a great eyeBend some combination spanners for arms with the open end for hands/claws. You could put bolts through the ring end so he can be posed.
Widgets?
Never seen one. They are a bit like thingy wotsits
One thing to be careful of is chopping up useful things to get the nice bits off them, it can be sooo hard when you see just the thing holding your camshaft in place or whatever.
Chunko'