Dragon #51 & #58 both seem to have % systems for generating aliens.
You might also be interested in checking out rand.zip at
http://www.esnips.com/web/RPG-Wares-for-MS-DOS
"Sam" <rpgstarwizard@...> wrote:
> I am looking for an OLD Gragon mag article that had a % system
> for generating alien races, any ideas?