Be able to add a short title to be attached to name in chat, profile, etc. It could cost, say, 250 AC the first time, and maybe gated by some ship if not a subscriber. Cost increases if changed within a certain window.

Example:

Annabeth
[The Tycoon]

Or it could be a subscriber benefit.

Not as awesome, but even a preapproved list would be cool.

I prefer Goddess. (: