http://www.dailymail.co.uk/sciencetech/article-2601548/The-3D-printed-HEART-Scientists-soon-build-replacement-organs-using-patients-cells.html
Engineered or specific print to order body parts are certainly on the horizon of science.
http://en.wikipedia.org/wiki/Biomimetics#Usage,
http://en.wikipedia.org/wiki/Otto_Schmitt#Postwar,
http://oldsite.thebakken.org/research/Schmitt/Otto-intro.htm
The Humanoid Form
"The Tin Man—the human turned into a machine—was a common feature in political cartoons and in advertisements in the 1890s. Indeed, he had been part of European folk art for 300 years. In political interpretations of The Wonderful Wizard of Oz, the Tin Woodman is supposedly described as a worker, dehumanized by industrialization. The Tin Woodman little by little lost his natural body and had it replaced by metal; so he has lost his heart..."
http://en.wikipedia.org/wiki/Tin_Woodman#Sources_of_the_Tin_Man_image
http://en.wikipedia.org/wiki/Robotics#History_of_robotics