Scientists have successfully implanted an outer ear on a patient, 3D printed in a lab, constructed using the patient’s own cells. 
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Super cool.
It is quite remarkable and the bioprinters are expensive but not in the grand scheme of medical things they are quite a bit less money than xray machines. they have also done bladders https://3dprintingpricecheck.com/3d-printed-bladder/
heart valves, kidneys, whole hearts, it is quite remarkable. life changing.