SCOBY material can replace leather and plastic in some aspects. “Mr. Kombucha's Lab” is an open-source platform based on SCOBY. It aims to instruct people to use SCOBY to DIY daily necessities to reduce the use of leather and plastic. The whole work consists of four parts. They are experimenting, breeding, creating, and sharing. Currently, the work has designed and completed various kinds of SCOBY manufacturing and application processes, including the domestic incubator which can produce standard SCOBY, 6 bags made from SCOBY, an online sharing website, and held a DIY workshop for SCOBY bags.