From proquo:
Junk mail is renowned for cluttering mailboxes, increasing the risk of identity theft, and, of course, killing millions of trees every year. Not surprisingly, it elicits annoyance from most people. But, believe it or not, it also elicits creativity from others. Below I've compiled a list of the “Top 10 Creative Responses To Junk Mail,” accompanied by a bunch of cool pictures. Personally, I'd be content to never receive another piece of junk mail for the rest my life, but who knows, maybe these people are onto something. Maybe there's more to junk mail than meets the eye. If nothing else, these responses represent some interesting and unconventional ways to recycle.