My first/main Guild Wars character just celebrated her first birthday this week. When a Guild Wars character celebrates their creation anniversary, a present appears in their inventory. The present is a Miniature, commonly known as a minipet. The type of minipet one receives is random. There are some that are rarer than others. Every year, a new series is released. They are tradeable and collectible.
I got the Jade Armour mini pet (common):
The Collector’s Edition of Guild Wars: Factions also included a unique mini pet, Kuunavang:
Kuunavang proved difficult to photograph, as she kept flying around randomly. It was hard to predict her movements; this might be as good as it gets. These pictures were taken just outside of Port Sledge.