3D Printed Skin
Not sure if everyone else already knew of this, but in Madrid they've established a method of 3D printing functional skin. (3D bioprinting of functional human skin: production and in vivo analysis: http://iopscience.iop.org/article/10.1088/1758-5090/9/1/015006/pdf)
It contains plasma, fibroblasts, and keratinocytes printed in two layers to represent the dermis and epidermis. The end result shows that it has a slightly different histology than human skin, but still incredibly cool considering once grafted it had vasculature beneath the epidermis that was similar to that of normal skin.