One of the most active unions dedicated to signature/avy/tag making. A great union and if you're interested in this sort of stuff, I highly reccommend you check it out. Voting, tutorials, gallery, Q&A, OT, and much more. My current AVY, of Velvet Sky, was made over there.
http://www.gamespot.com/pages/unions/home.php?union_id=ASOT