The Save Water Brick design is really unique; the brick is a mixture of discarded plastic bottles and dried rotting leaves molded into bricks. There are funnels within the brick to channelize the rain water to nearby plants or underground tanks. So the basic idea is that it collects rainwater for consumption. Obviously the bricks are intended for external walls so that they can absorb the water, but the question is will they be strong enough to endure the elements?
Designers: Jin-young Yoon & Jeongwoong Kwon via IIDA