The firearms and ammo industries have latched onto zombie-mania to cash in and promote their ideas of preparedness.
http://www.hornady.com/ammunition/zombiemax
http://www.gunsandammo.com/shooting/blogs/zombie-nation/
http://www.npr.org/2012/04/16/150710498/nra-gets-in-on-the-zombie-craze
http://www.gunsandammo.com/reviews/zombie-gun-the-mossberg-model-500-zmb-review/