Red pigment in the paint used on symbols and eyes is notorious for leeching out and making eyes or symbols which were originally purple more of a blue hue. Cotton Candys eyes, Moondancers eyes, Gustys symbols it seems to happen a lot.
Their is a mail order Cotton Candy but her body is almost a hot pink in colour rather the medium to light pinks you get with store bought CCs and again her eyes are purple but sometimes over time can go blueish.