UseThisNotThat. The basic idea is that you put in a product and it offers you in return a more environmentally friendly product. So eco-friendly design looking things for Use This Not That. Payment via paypal in 24 hours to the best one.
The business is as follows. You go up to a kiosk in a grocery store, scan a product you've found (such as a laundry detergent) The kiosk then shows you what the issues with the product you scanned are, and shows two or more alternative products that are more environmentall friendly, safe, or whatever. Then it offers a coupon to help make up the price difference.
This is one of my favorites, however the owner will not accept a fair price for it (50% down, 50% after its sent). Given my itrader, I think that's fair. I'll give the contest to the next one I like. Things in this vein are good. I don't want red for the not that though, I want earth tones.