Here's more code for running your own: https://github.com/longears/horsey-books It's running the (NSFW) bots @fetlife_ebooks, @obscuregenres, and @snes_games.

Lately I've been tweaking and curating the output before posting it. It makes it a bit less magical but much funnier. It turns out that seeding your brain with random starting points like this is a potent creativity-boosting technique.

I tried using Bayesian spam filtering to classify the results as Funny or Not Funny, but it was unable to detect funniness just from which words were present in the message.