"To begin, one continuously puts food scraps in the bin at the top. As the composting process is accelerated by the worms, the bin holding the plant slowly sinks down, and markings on its side shows the user the gradual progression of composting. Any icky goo is plugged up with a cork stopper at the bottom, which can be regulated and emptied if needed.

Clay was used here as an effective "mediator of odour, moisture and temperature" for both humans and worms -- a plus for people who want to compost, but don't like odours, nor the aesthetic of plastic bins. The low-tech yet naturally stylish aesthetic (it does look like a mini-tree) of Uroboro is a welcome departure from the plastic DIY vermicomposting bins and overly high-tech options we've seen out there."

Learn more about this project here.