Manor 'n Rock
spent December 2007 releasing a set of JSF components
: a canvas component, to render images; credit card and electronic check components, an ISBN component, an NAL (name, address, location) component, and SSN components.
All of the components are LPGL-licensed, and the website has demos for each of them, but it's unclear what the target object types are - the downloads don't include the demos or source for the components.
Still, it's a good idea - now we just need others to start generating other components for JSF.