Here are some recs for the 3 Sentence Ficathon! This is even less comprehensive than my 3SF rec posts generally are, because work. The last post of my own fills is back here.

Random order, not enough of them to bother with cuts or separating by fandom. Format is title [if any], fandom, characters, prompt.

Make your choice, adventurous Stranger, Narnia, any, eventually, life returns to Charn by syrena_of_the_lake

Narnia/This Tumblr Post, Peregrine Falcon, clueless Pigeon, I'm so embarrassed by syrena_of_the_lake

Like a Waking Dream, Greek Mythology, Ariadne/Dionysus, drink with me by vialethe (rated E)

anthropomorphic, Yuletide & 3SF, 3SF is the chaotic crazy drunk relative by vialethe

Charming But Unsettling, 3/5 Stars, Dracula, ensemble, Dracula is convinced to give up his territorial ambitions and converts his ancestral castle into a charming B&B (anonymous)

Neko Atsume, Snowball | Shironeko, 'oh, there's a cat.' (anonymous)

Hamlet, Hamlet, liturgy of the hours by ernest