Make Your Own Clean Composting Toilet
The humanure movement is huge. Right now, you're wasting gallons of water a day flushing. Clean up your act! In just one to two years you can have homemade compost for your organic farm. These don't photograph well though, so, just focus on photographing vegetables that result from you compost and tweeting about how much water everyone else wastes.
[Photo via @hotsauceholli]