"Oblique Strategies (subtitled Over One Hundred Worthwhile Dilemmas) is a deck of 7 by 9 centimetres (2.8 in × 3.5 in) printed cards in a black container box, created by Brian Eno and Peter Schmidt and first published in 1975. Each card offers an aphorism intended to help artists (particularly musicians) break creative blocks by encouraging lateral thinking."http://en.wikipedia.org/wiki/Oblique_Strategies
Oblique Strategies is now online. Instead of picking a card ... you open the page >> http://www.joshharrison.net/oblique-strategies/
I have added a few that I received at random today. I love the concept and will need to pick up a physical pack of the cards at some point. However, until I do that, I'll refer to this website.