Someone is selling an "unlimited supply" of foodsafe plastic 55 gallon barrels with screw on lids in Greentree, PA. Looks like an awesome deal at $25 each. http://pittsburgh.craigslist.org/grd/3364979893.html
These are all over the place where I live southeast of the city. They look pretty solid, I've been considering picking one up. There was a local business that did nothing but make rain barrels and composters out of these.
I've seen these used as a mash tun with one inch foam wrapped around
"To alcohol! The cause of... and solution to... all of life's problems,"