Sculptor Keith Newstead made this lovely brass pegasus automaton. He writes of its metal work:
As they had been cut from 1mm brass they were quite heavy and I was worried that the whole brass horse would be too heavy for the crank to lift it.
I made up the base , fitted all the parts of Pegasus together, fitted Pegasus to the base and joined up all the connecting wires.
As soon as I connected the wings I realised that because of the way they were set up they were actualy lifting the rest of Pegasus, in effect making it lighter.
http://www.keithnewsteadautomata.com/forsale/brass-pegasus and Link via Make