Pierced Cocks

the concept is never one that willingly enters my mind.

I agree. I mean, of course you're free to do whatever you want with your cock, but personally I would never do anything like that. Partly because of the risk of damage (if my 'little man' breaks then my life is pointless!), but also because I'm not sure there are any benefits. Does a woman love a cock better if it has a huge chunk of metal sticking out of it? Maybe some do, but I bet the majority don't.
Anyway, that's just my opinion.