You don't need any fancy machines if you want to do your own anodizing. Just a battery charger, some sulferic acid (just strong enough to conduct electricity), nitric acid (for cleaning), a bucket, a pot, a stove, some aluminum wire, and whatever color dye you want (even food coloring works).

First, you clean the part in nitric acid or whatever else you think will work. Then, coil up some aluminum wire in the bottom of a bucket and connect it to the postive of the battery charger. Then, fill the bucket with sulferic acid. Attach the part to be anodized to the negative electrode. It should bubble as you lower it into the bucket. Let it sit for a while, then put it in a pot full of warm water and whatever dye you want. Let it sit, and when it's about the right darkness, put it in hot water to seal up the pores in the metal.

I've never anodized, but I do use a battery charger and a bucket full of washing soda to remove rust from steel parts. It removes paint too, and leaves a very good finish for painting. Just rince it off when you take it out or it will be rusted the next day.