I need (ok, would like 😉 ) 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).