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Jelly beans that might be blueberry — or might be Vomit. Jelly Belly made the Harry Potter books' candy gamble real, gruesome flavors and all, and turned every playground into a dare arena: take one blind, make the face, sprint to the trash can.
Before AO3, before Wattpad, there was FanFiction.net: the site where every fandom on Earth kept its stories. Disclaimer at the top, "R&R please!" at the bottom, and somewhere in the middle, a fourteen-year-old quietly becoming a writer.
Snape, Snape, Severus Snape. If your brain just added the next line, you were on YouTube in 2007. Neil Cicierega's felt-puppet Hogwarts reduced the wizarding world to bickering hand puppets — and produced one of early YouTube's most-watched videos ever.