Environmentally friendly manufacturing is not an all-or-nothing exercise. The Green's Voice sound system demonstrates that once the more complex parts of cutting-edge products are produced, they can rely on existing objects to complete the design.
Here we have a speaker concept by Cheng Ya-Fang and Lin Nien-An that requires an additional vessel for amplification. With an abundance of discarded plastic water bottles cropping up in populated areas worldwide, it's the designers' brilliant idea to incorporate those into the finished product.
You'd buy the biodegradable PLA-molded Green's Voice audio accessory, complete with its pliable rubber cradle. It can be fitted as a cap over almost any recycled canteen and it uses the enclosed space inside to enhance its sound. An innovative paper battery guarantees that this gadget will play for ten times longer than most others.