By DoctorOcto via CivitAi: https://civitai.com/models/427205/flat-duolingo-style-pony
Also supports generating the various characters from Duolingo using the following prompts:
Duo, DuoDuolingo,green bird
Eddy, EddyDuolingo, man, red shorts, red jacket, ZIPPER, blonde hair, athlete, sports red headband
Junior, JuniorDuolingo, boy,orange hair, light blue shirt,blue shorts
Lily, LilyDuolingo, girl, light purple hair, hair over one eye, purple nails, thin body, petite, purple sweater, purple leggings
Lin, LinDuolingo, woman, Chinese woman, black hair, brown coat , white shirt, short haircut, brown trousers
Lucy, LucyDuolingo, woman, Chinese, Chinese grandmother, black hair, thick eyebrows, yellow dress, orange dress
Oscar, OscarDuolingo, man, black hair, Mexican, moustache, pink shirt, green pants, mexican mustache
Falstaff, FalstaffDuolingo, bear,blue ribbon
Vikram, VikramDuolingo, man, Punjabi man,black hair beard, blue turban, pink shirt, jeans
Zari, ZariDuolingo, girl, black hair, blue shirt, pink hijab, pink pants,bangs