Cosplay is a time-honored tradition of geekdom, but the Transformers fans have a sub-genre that has to be seen to be believed: transforming costumes. There are many examples out there on the internet, but the first time I saw cosplayers living the dream is in this clip from 2004, where the cast of Transformers: The Movie (1986) is depicted and the Autobot City battle in enacted for an audience in France. Yeah, sometimes they need a little nudge from a fleshling, but this is a fine example of passionate costumed fans. You’d have to be, wouldn’t you?
Also here is a clip of some of the costumed fans showing off the transforming duds offstage: