The bunny character does exist from the sims 3, so yeah it is fan art. If you browse through the paintings there is a drawing of him. If you buy ice cream from the ice cream truck there is a popsicle. The sims 3 island paradise has a beach towel of him. I think a few clothes have prints of him. I see him everywhere but I am sure there is more to this list. Just google him and you will see.