From an environmental perspective, plastic cutlery is pretty disastrous. It's often used just once before being thrown in the bin, and every year vast quantities of plastic knives, forks and spoons end up in landfill, where they release harmful substances into the soil as they decompose. However, one enterprising inventor is now hoping to make plastic cutlery obsolete by providing a viable, environmentally-friendly alternative: edible cutlery. Narayana Peesapaty is from India, where 120 billion pieces of disposable plastic cutlery are thrown away each year. His edible cutlery, branded as Bakeys, is made from millet, rice and wheat, and is available in a variety of flavours. Bakeys, founded in Hyderabad in 2011, says its products are "highly nutritious," with a shelf life of three years. If you use a Bakeys spoon and don't eat it, it'll decompose in less than a week. A video showcasing Narayana's invention has gone viral this week after it was shared online by the website The Better India, where it's been viewed more than 2.5 million times in less than a day. It isn't quite as sturdy as its metal or plastic counterparts - Bakeys suggests not using too much force if you use its cutlery to cut into hard foods, saying: "after all these are made of flours" - but its spoons are firm enough to get you through a cup of hot soup without it wilting. But could they ever become popular enough to replace plastic cutlery the world over? We'll have to wait and see.