I've got a "Lenore" costume from the Edgar Allen Poe poems. It actually started out as an 1830s mourning dress, but then a friend saw it and said "You should wear that to the goth club. You can say you're representing Poe." That was when the lightbulb went off.
Fluttershy (MLP), Lady Loki (Thor comics)
Joffery Baratheon (Game of Thrones)
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