Didn't it ever occur to anyone that Darth Vader would get tired of black?
Actually, he probably wouldn't.
Nevertheless, in celebration of 30 years of Star Wars, The Vader Project was created. A handful of artists were invited to design a new helmet for Vader. They were given a 1:1 scale authentic prop replica of the actual Darth Vader helmet used in the films. They were originally displayed in May 2007 Star Wars Celebration IV in Los Angeles. They got around and eventually made it to the San Diego Comic-Con in July of that year with some new additions.
Now the helmets are in Pennsylvania at the Andy Warhol Museum with new additions. They'll be on exhibit until May 3rd.