I am in a number of PBW games, and there is this Character

that seems to change his/her race/ship set image about ever other turn.
Now I don't want to name names (I don't want him to think I am picking on him), I just get a bit confused of which freaking game I am in, when I see all these different Icons ect...
umm, maybe I shouldn't have pointed out how confused I am getting, I would hate to think of EVERYONE changing their Icons on me
And finally, how can you change your icon like that?