Good old Darth. When you are the big evil one you must look your best… must keep Darth Vader's helmet clean and shiny.
Cool Star Wars fact: Plo Koon is a Kel Dor and was close friend of Qui-Gon Jinn. He was a Jedi Master and was one of the last members of the Jedi Council. Alan Ruscoe was the actor playing Plo Koon in Star Wars: Episode I – The Phantom Menace.