Apparently, according to the Forgotten Realms wiki, there are drow clerics that follow the ooze god Ghaunadaur and form partnerships with Black Puddings, so if anybody wants to incorporate Venom into a campaign, 2002′s City of the Spider Queen already basically made it happen

So yeah, encounter: Eh-Di Braak, cleric of the ooze god, once spurned by a priestess of Lolth, using his Black Pudding partner in mockery of the spider-goddess

Encounter: small girl with toes for teeth, wondering if you have any rations you might spare. “Nothing too cwunchy,” she says, “I hafta eat it wiff my toe-teef.”

(credit: the children’s book “If…” by Sarah Perry)