Stelarc

Stelarc says, "My extra ear, made of human cartilage, is an augmentation of the body's form."

"He views this as art but I personally find it offensive"

- Sasha Gardner, who was born with one ear missing

Stelarc is an Australian performer who had an ear grafted onto his forearm in the name of art  which has sparked controversy it had taken him years to find a surgeon prepared to perform the operation. The ear was created in a lab from cells.The ear does not function, but he hopes to have a microphone implanted to allow others to listen to what his extra ear picks up.
Stelarc is apparently planning to go through a few more surgeries to give the ear more definition.