@subtext Something I’ve used in a handful of campaigns. is the “Deck of Many Answers”.

It appears as a deck of blank faced tarot sized cards. If discarded, the card vanishes and returns to the deck.

If a player asks a question before drawing a card, the card contains a hand drawn sketch attempting to illustrate the answer to the inquiry, but never with text or numbers. However, the deck is not omniscient and it’s answers getting increasingly symbolic and open to interpretation the more abstract or game breaking; the players inquire.

Usually found by players, with no instructions.

Figuring out the shtick usually provides a lot fun, and they end up being MILDLY useful should players get the hang of them.