What characterises all of Stelarcs projects and performances is the notion of the prosthetic. The EXTRA EAR is a project Stelarc has been fostering since 1997 and the problems lie in finding the appropriate medical assistance to realise it. Constructing the EXTRA EAR would involve a number of procedures, over approximately 8-10 months. Techniques from Cosmetic, Re-constructive and Orthopaedic surgery are necessary. Here Stelarc outlines some of the essential steps in constructing the EXTRA EAR and discusses the nature of this radical project.