I've gone off at a tangent again...
Brief history of the codpiece
http://www.exn.ca/Stories/1999/09/29/56.asp
Different styles of original here (scroll down)
http://gs.fanshawec.ca/dwhite/SONNETS.htm
People still wear them like this
http://img45.echo.cx/img45/4416/codpiece5ar.jpg
and this
http://dropd.com/issue/84/Blammo/val.jpg
More typical modern day versions favoured by rock stars, with socks-in-pants problems (may supply photo if asked nicely)
I vaguely remember reading about an Italian style of codpiece (maybe in Casanova's memoires - first half, before I got bored), that had bells on the end so that men could audibly signal their attraction to passing ladies of the court (Mae West would have loved that!).