Thôo-tāu is a multifunctional farming tool for home gardening enthusiasts, rooted in a deep connection to home and land. It draws inspiration from agricultural waste in Chiayi’s coastal areas—such as discarded peanut and oyster shells—reusing them through a “craft-based fertilization” technique. The sharp front tip loosens soil and becomes a slow-release fertilizer. The semi-transparent T-handle includes depth markers and a seed hole. Thôo-tāu invites urban users to recognize the issues faced by rural communities and to redefine how tools and fertilizers are perceived in city life.