[Closed] Anodising small stuff - any recommendations please?

I need (ok, [i]would like[/i] 😉 ) to get a specific part of a stem anodised, there's a few companies online, but before I just pick one ... anyone had this done, and can recommendation a supplier please?

If I was going to be doing more, I'd look at a kit and give it a go, but as this is the only time I've needed to do it - that's clearly not really worth it. I'm looking for a dark-blue-grey'ish kinda colour.

The part is new (and has a little bit of etching on it - this can stay, or be lost according to the process - I'm easy either way if it survives / needs to be removed).