Having looked at this very thing I have to say that between the expense of setting up various tanks of chemicals and maintaining temperatures the ability to apply some times large currents.
There are lots of dangerous chemicals you need lots of ventilation.
You may or may not be zoned for this type of operation.
An anodizing operation even a small one is an ordeal.
I can almost guarantee that unless you have tens of thousands and a proper location and the drive to do this on a business level.
This will end up being a very costly hobby.
Sort of like taking a hobby to the nth degree.
Anyway I definately recommend that you have a look at your local anodizers and see what kind of deals you can get. Most shops have minimums that range between $100.00 and $1000.00 depending on the size of the shop.
My experience with anodizing shops is that they are generally unpleasant places. Older shops which I have seen in East LA are caustic environments ever metal fitting in the place was rusting..not from water.
Another consideration is the need to do the work without destroying the environment, You just can't pour vats of a bad batch of anodizing mixture down the drain.
I wish you luck but please be careful and consider using a local established shop instead.
Yaesumofo
There are no prices at this time - I would have to make an investment in equipment and supplies before I can start this. I wanted to get an idea of what kind of interest there is before I start to invest in the process.
I have been in contact with a number of companies for some of the various items needed.