Shame you don't "do" aliens... that's what I do, along with my own, original fantasy critters (I don't "do" humans, at least as main characters... NPCs?... fine). Heh. You sound like an interesting person to RP with. And I still have ideas of my own I haven't played yet. Presently GMing a thread here and on another site. One here is "on hold" due to two players in the process of moving, one off-site is really doing well. Though I'm limited to a public computer, I could, perhaps, play in another story... a one-on-one would do. Have ideas for one-on-one stories, and characters to play in them.
*ponders*