DeathNote
There are many forums and you can be a few of the characters in their style room too you can also be Mello. Although if you visit there you will meet many other people and creatures. Talking about creatures you can buy pet gods of death from deathnote.
Here are other thing you will find there other than the rare deathnote avatar.
The Phantom of the Opera
Sailor Moon Characters
Vampires and monsters
furries
mermaids
winged angels, fairies, demons and elves even birds
Something like this would be good for her ( I can't see my joke offending the avatars's owner it's mine)
others don't change their avatars from the defaults
the strangest one I met was a Giant EYE Ball! you can be anything.
Rooms are where the avatars walk and live as real people they can be rooms, houses, buildings with gardens, gardens, boats and boat rides. There are public rooms where avatars can chat and explore or just relax and admire the beauty of the rooms such as the beyou and the castles with flying serpents.
this one is a ghost that has a moving key and marionette strings her name is HauntedMarionette my strangest avatar