The metal-forming method known as spinning will be familiar to anyone who's used a pottery wheel, and it's one of my favorites to watch. (Stamping is over too quickly to be interesting.)
While I think this dude is crazy for not wearing safety glasses, I enjoyed watching him spin this flat disc into a light fixture:
For a closer view of what's happening to the metal, check out this video of a flat disc of aluminum being shaped into a can with a CNC lathe:
Then there's spinning on a much larger scale -- I liked watching this video of a guy making a baseplate for a fan because it kind of looks like he's working on a time machine:
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i tried the process once on a woodworkin lathe with an improvised toolset and it worked quite well for an first attempt. took me one day for moldmakin and spinning 3 prototypes (of which the last one was free of faults)
so if no professional is at hand it's process that can be handled at any design facilities workshop
results can be seen here: http://www.metalspinning-fhp.de/startseite.html