How 'bout a self-contained ecosystem...in your living room?
Just steps away from your food source, you can't get more local than this!
Mathieu Lehanneur is a modern designer who defines ecological-based home decor.
This model comes equipped with a hatchery for freshwater fish and a hydroponic vegetable patch. It's a symbiotic relationship--the plants act as a filtering system, extracting nutrients and purifying the water.
To read more about the project see Mathieu's website. (Tab #28)