My Little Piranha (2 Year Old Biter!)

How do you stop a two year old from biting? I'm looking for creative suggestions. I'm sure I'll look back on this and laugh someday. Imagine my dismay when the daycare director called to tell me my DD was barred from the center for one day for feeding on one of her "friends" because he took away the car she was holding. She only does it when she gets frustrated because someone takes away her toy or tells her she can't do/have something. I struggled with how to make her life miserable so she didn't see my coming to pick her up as a good thing. I bite my friends=my mom comes and picks me up. Hmmm...gold mine! She's only two and already she's been expelled from school. Let's hope this isn't a sign of things to come. Help!