The Business Reply Pamphlet from Packard Jennings’ Centennial Society is a sixteen-page booklet made to be placed inside postage-paid, business-reply envelopes that come with junk mail offers. Print off, seal inside the envelope then return to sender whereupon the envelope-openers will be encouraged to interact with their workplace in a manner they may not have considered before. Download individual pages here or see the whole series here. And while we’re at it Centennial does a nice line in stickers for Bibles warning of Creationist content. Via Boingboing.