If you search on 'prosthetic' at Share CG you will find arms. That artist also has some legs for V3 that you could rerig, but they aren't like the above ones...

EDIT; there is a model of the C-Leg there for Genesis in the DAZ Studio section.

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The Wisdom of bagginsbill:

"Oh - the manual says that? I have never read the manual - this must be why."
“I could buy better software, but then I'd have to be an artist and what's the point of that?"
"The [R'osity Forum Search] 'Default' label should actually say 'Don't Find What I'm Looking For'".
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