How Mushrooms Turn Agricultural Biowaste Into Packaging, Furniture And More Link: We already know that plastics are choking up our oceans and they are evenpoisoning our food, but are there any viable alternatives? From discarded eggshells to bananas, we’re not short of potential feedstocks for bioplastics. But one company is taking the idea a step further — instead ofcreating bioplastics from plants, it wants to replace plastics outright with a mushroom-based material that it grows.