" ...an extra sliver of bone can be sliced from the jaw to yield bone cells. These cells will be grown on a ring-shaped scaffold structure, which will slowly dissolve as the cells colonise it. The rough bone circles will then be given to the designers, who will consult with the couple and shape the bone into customised rings. Each partner will give the other the ring grown from their cells. One possibility is that the rings could be used as wedding bands..."