Look at these intricate sculptures by New Zealand artist Peter Trevelyan and weep: the geometric structures are made with 0.5 mm lead refills for mechanical pencils! I can't even reload my mechanical pencils without snapping a few of these graphite sticks ...
My Modern Met blog has more pics, then head on over to Mint Style Studio for an interview with the artist.
I would have used soldered steel wire and a graphite spray... .
Yes, wire would be a more stable medium but that would destroy the sisyphean pointlessness of it.