Media blasting and powder coating is a great way to make old parts look better than new. I have been using the hot coat system that Eastwood sells for some time now.
http://www.eastwood.com/dual-voltage...arter-kit.html This is a great product for the the occasional powder coater. I have not found anything that I couldn't powder coat. Used in conjunction with prismatic powders the possibilities are endless.
http://www.prismaticpowders.com/ The only thing that limits your capabilities is the size of oven you have.