Bones grown in a lab..
Below is a link to an interesting article about innovating technology whereby bones can be grown in a lab from the fat taken from a human. To summarise briefly, cells from human fat are stimulated using additional nutrients, oxygen, hormones and sugar and grown in a bioreactor chamber. A similar process to In-Vitro meat- the bones created are natural.
I wonder if the cells in combination with a bone deformity gene, such as Paget's disease would accelerate growth?
http://boneserver1.bme.columbia.edu/bone