Here is a PDF which can be printed as a tri-fold pamphlet. It contains subversive thought about robots, cabbages, and Discordians.
(also available in .doc so you can edit it for your own purposes)
This pamphlet is designed to be left in places where people will read it while bored. Leave them on trains, busses, the stops associated with both, waiting rooms, or anywhere where people have a little bit of time and are bored.
If you’re feeling evangelical, you can even hand them to strangers. Personally, I like to carry around some to trade with other people who are handing out propaganda.