JK Rowling, the author of the <em>Harry Potter</em> book series, has reposted on Twitter a series of TikToks that imagine a century of fashion at Hogwarts. The looks chart envision fashion from the 1920s to today, with homages to each of the four houses at Hogwarts School of Witchcraft and Wizardry: Ravenclaw; Hufflepuff; Slytherin; and Gryffindor. The video tribute seems to have tickled the writer, who wrote simply: "I loled," in her tweet. The impressive wardrobe has everything from ties and scarves for each of the four houses, to props that include a cauldron, cloaks, wands, a quidditch bludger ball and a chocolate frog box. The video retweeted by Rowling appears to have been adapted for TikTok from a YouTube video made by users Michael and Hayley. In the YouTube version, there are male and female fashion choices for every decade. The pair are evidently big <em>Harry Potter</em> fans; videos on their account include an unboxing of Hagrid's umbrella, documentation of a trip to the Wizarding World of Harry Potter in the US and reviews of various wands.