I used an Alien Bridge Officer to remake an NPC from a very old Star Trek tabletop game, Flight Control Officer Tyra Tal Vaelar. She's half Andorian and half Danish (her mother was an exoanthropologist who fell in love with Andorian culture in more than one way), but a big part of Tyra's reason for joining Starfleet was that she never quite felt at home on Andor due to her lack of antennae - before they were relocated to a more visible area she instead had two small vestigial nodes under her hair at the back of her head.
Since the current character creator doesn't allow Andorians to remove their antennae (which they could during Beta), my solution was to wait until I found an Alien with a near-Andorian set of traits (cold resistance and aggression, for example) and then customize the BO appropriately. Problem solved.
And yes, I do use my Bridge Officers as an outlet for my altoholism.
Both my characters were made using the Alien Creator. My Main is half-orion/half-human, you can see her as my avi. I tried to give her slightly different than default features while still being pretty and seductive. I've seen 3 other Starfleet Orion or part Orion girls--the two who post a bit on these boards and one other. I do wish we could name our alien instead of them being listed as Unknown, but that's what the bio is for I suppose.
My alt, S'kry Vllaler is much more of a concept alien--I wanted her to be very long limbed and agile with a slight insectoid feel without being chitinous. I've got ideas about her world and people, but since she's my alt I'm waiting to play her much if I do, so her story isn't fully fleshed yet.
I'm at work now, but I'll post pics when I get home. I really enjoy playing with the character creator.