CALPHALON 

Is it time to upgrade the old non-stick pots and pans you bought years ago?  Chances are they are flaking off and “seasoning” your food with not-so-tasty toxins!  If you purchase new Unison™ cookware from Calphalon, they will pay to ship your old pans back to them, where they will recycle them properly. This is a good trade off if you are in the market for new pots and pans, and they also throw in 2 reusable (100% recycled cotton) shopping bags to applaud your recycling efforts!

http://www.cookware.com/Recycle-Your-Old-Cookware-with-Calphalon-ReNew!-A1094.html