This is my friend. Her avatar doubled! I traded with the one that was not moving (the one that was not her) and it traded the real person!
Ok this is a glitch people have seen. It happens when you put in twenty or something of the new toys.
This one happpened when I was going from a den to Jamaa Township. I don't know what happened but all the people in Jamma Township showed up in the den. The owner of the den was offline at the time. The people were never at the den.
See my locket? It is coming through my clover blanket! (Which are now on sale! See my new post Clover Blankets on Sale!) I think people have seen this glitch before.