Hey @ChrisLips , there are lots of vendors offering anodization services, search for a custom metals or plating house local to you. Expect a min charge like $50 or $100 for small batch like a couple of hangers.
As @Battery_Mooch mentions the Hard Anodize option is more robust but comes with higher cost and is not as available as the standard anodization process.
May or not be relevant… a buddy and I are slapping together a home brew anodization setup for fun. Black color only. In the next couple of months I plan to throw a few things in there like aluminum pulleys and mounts – we’ll see how they turn out.