Switching your bait and tackle
It is an interesting ethical issue. On the one hand, a penis seems to be not as personal as those controversial tranplant items, i.e. faces or hands. As the cliche goes, if you have seen one, you have seen them all. On the other hand, the penis is both flesh and symbol, deeply prized, fetished and the source of multiple anxieties, as David Friedman has illustrated in his A Mind of its Own: The Cultural History of the Penis. Whatever the penis' magic power may be, you don't just sew somebody else's on and expect things to be fine.
Or don't you? As we have seen with other developments involving reproduction, what is first an object of revulsion may become an object of desire. With all the consumer demand for penis enlargement and drugs to combat erectile dysfunction, who knows, maybe some healthy men, in search of enhancement, will want a penis translant if the technique is made safe and has good results. One can count on someone saying that having a longer penis, via transplant technology, is a human right. And no doubt, an underground market in male members would emerge, similar to markets now in kidneys and lungs. The movie possibilities are endless.