While most anything can be turned into a leaded glass panel, wrought iron is one of those things that is hard to transfer over, because of the additional lines needed in a leaded glass panel. The easiest way to transfer a wrought iron design over to leaded glass is to use different width leads, so that the design can be somewhat seen the way it was intended to be seen. The alternative to building a leaded glass panel is to do some sort of etched or blasted piece, which means additonal lines required in a leaded glass panel can be eliminated.