This reminds me of the I Ching (of Man In The High Castle fame, plus y'know, 3000 years of history) approach to decisions, where you ask a question and then receive a random hexagram with a collection of general wisdom. It stimulates thinking around the subject, surprisingly effectively.
Both that and the card deck have a lack of causal connection that works in favour of creativity.
Brian Eno's Visual Music, which I think shows the problem solving card deck, amongst many other artistic experiments, is also supposed to be good.