A method of reproducing a biological object includes 3D-imaging the object and generating a mold using a 3D printer； obtaining cells from a donor site on the object； preparing a live cell suspension using the cells from the donor site； forming a scaffold in the mold with collagen and seeding the scaffold with live cells, growing the cells in the mold and curing the collagen； and surgically implanting the object into a living subject, where the cells continue to live in the living subject.
