Back in old There, a group was formed named, The United Aliens of There. This article will help you setup your Alien lookset.
I'm not sure who originally created the group, but the idea was that EVERY MEMBER HAD TO CREAE THE OFFICIAL LOOKSET. If you didn't setup the lookset, you weren't allowed in, thus assuring all aliens would look identical.
If memory serves me right, the group was invite-only and you couldn't be approved until you setup your exact lookset.
Once accepted into the group, the group would schedule an event in which they would all gather together in their looksets and choose some place to INVADE. Usually either an occuring event or popular place was chosen.
The United Aliens of There would then all teleport to the agreed upon location and run around the people at the event/location, being smart-asses and having a blast.
Imagine what it would be like to be at a card playing event and suddenly have 20 aliens running around causing chaos! It was always a lot of fun and made There that much more interesting.
Here are the exact settings needed to create your Alien lookset...