SkinResQU, Centre for skin research at the University of Gothenburg and Chalmers, is planning to 3D Print human skin with purpose of transplants and testing medical treatments. Since the prohibition of animal skin, it is difficult for clinical trials and donated skin parts aren't sufficient, 3D Printed Skin appears to be the perfect solution.
Source: http://www.3dprintingprogress.com/articles/9589/project-to-3d-print-human-skin