lost vocalsynths?? ^^

recently i encountered what I believe to be an older vocaloid, or at least a mascot character associated with vocaloids that has not been used since 2012 called “pc shoujo ripple+” !! ^^ I’m not really familiar with her past finding some edm albums with her pictures attached !!

from what i know she was a mascot for Animage and Lantis Co. (Under Bandai Namco.)

does anyone know any other vocalsynths lost to time??