Recycling machines and reverse vending machines are still fairly new -- recently I wrote about a couple of cool ones <http://news.discovery.com/tech/recycling-machines-give-back-to-greenies.html>  arriving at college campuses and other locations around the country. Unlike those, however, the "Store Collection Systems" at Wal-Mart are made by TerraCycle <http://www.terracycle.net/> , which runs national waste materials collection programs for schools and nonprofits. The company makes eco-friendly products, including bags, coolers, and kites from materials like discarded energy bar wrappers and yogurt cups. I'm definitely a TerraCycle fan, first hearing about it back in 2007 when a colleague of mine at a short-lived online magazine interviewed founder Tom Skazy. The magazine is gone, but I still have an electronic copy of the Q&A.