Coatings?

[BMERDOC]

I don't think this has been talked about for while so I'll bring it up again because there might be some new stuff out there I'm not aware of....

I'm blasting and painting my control arms and other parts. I don't want to paint or powder coat my cross shafts and end nuts because I know the paint will be scratched and knocked off when I go to put everything back together again. Sooo...anybody seen any new at-home coating products or have a method that's easy enough to do? I'm a tad familiar with Blackening but it seems like a lot of set-up for something so little. I'd love to have several options such as black and silver finishes or a grey. What are my options?