On Craigslist, I am asking for a dollar, (otherwise it would have to go to FREE STUFF category), but for rec.crafts.metalworking it is free:
10 foot pole, very heavy, maybe 600 lbs, with square base.
I would say that if you can weld, and can bolt it to your floor, you can do a lot of stuff with it.
[I am also accepting ideas as to what I can do with it]