Couldn't Take It No More
So I Became Hardcore
You JUST noticed this? How in the...
C3PO was originally silver, but when he came to be owned by Senator Amidala, he was given a golden body. After losing his leg, he was given a temporary silver leg replacement. Due to the fall of the Republic, he never received a new golden leg. Watch all of the films and you'll see the transition.
lol wat? silver?