If the Evaop-Rust hype is to be believed, you can just toss all your old screws into a bucket of that stuff, and pull it out a few days later just like new!

There was a post awhile back where a guy put up instructions for some kind of electo-rust removal.. involving a water filled container, a piece of rebar, alot of salt, and a battery charger.. I think one dude actually built a 5,000 gallon version to take the rust off his frame!

an idea is only stupid if you think about it rationally.