"No, they don't change colour at all! I wish they did, that would be so cool. They're just kinda shiny, see? Like seashells!" Indeed, they're a little iridescent, pale rainbow hues spreading across them depending on how the light hits. She pauses only long enough to take a shot of whatever this burny-terrible liquid thing that is not tequila is. "How about you, you got any parts that change colour?"