I painted my brake calipers (and I think you're going to hate the colour) 

Last (for a while) in this little sidetrack of a project, while I refurb some very crusty old BMW Z3 front hubs and calipers. Was it worth it? Almost certainly not. Did it give me something practical to do? It did.
And I'm quite pleased with the result...for quick and cheap job. If was going to do this properly, I could have bought some new calipers, and spent a lot longer prepping and smoothing the hubs. But these will now last for years and they look a hell of a lot better than what was on there before.
Big thanks for all the feedback and tips on this little set of episodes. I've bought some better penetrating oil, am considering some big buckets of rust remover, and I really want to look into electroplating and nickel coatings now.
But that's all for the future. For now, I'm pretty sure most of you are going to hate the colour of the calipers, which might be politely called 'shiny rust' and at worst might be called 'baby $#!£'! But I'm quite fond of it. The camera maybe doesn't get it but when the sun hits them, they're really quite bronze, which is kind of the look I was going for. Shame the sun won't be hitting anything around me for the next six months...