Hang ups about the environment
Here's an interesting idea. Eco-Hangers. Instead of wire or plastic clothes hangers an American company are producing hangers made from recycled paper. That's kind of cool in itself but the really novel thing is that the hangers are given away for free to drycleaners. The manufacturer places ads on the hangers themselves and the advertiser underwrites the costs (at about 5cents per unit).
It serves as a reminder that, potentially, everything is a medium. I imagine there are some products that would be better suited (if you'll excuse the pun) to this environment and would be useful for some provocative and different ideas that leverage the context.
A nice example of a no-value product (other than utility) being re-thought in an intelligent way. I wonder what other opportunities there are to kill two birds with one stone?