The Trixie Doll, a robot plushie copy created by a supervillain. Because he programmed her personality based on a biography he didn’t realize was written by the real Trixie, she’s incredibly kind, selfless, friendly, and practically flawless in personality :D
 
Fun fact: he built her instead of a Twilight doll because he wanted an evil clone of “the greatest and most powerful pony”. He REALLY needs to stop using Wikipedia as a source of info XD
 
All of them together :D