How do you guys "restore" your bolts. I’m taking stuff apart (grill, fenders, core support, etc) and there are lots of unique bolts that I’d like to re-use. But rather than sand blast, wire brush, I was thinking of other options. I guess buying new ones would be another solution too.

I was thinking a vibratory tumbler would probably due a good job, but I’ve never used one.

Any other good options?