For this purpose-driven STEAM and entrepreneurship project, students explore recycling processes and soap manufacturing while promoting hygiene and sustainability. They begin by designing a custom soap shape using 3D modeling software and printing it at a 1:1 scale to create a hard mold. Then, they collect used soap waste, melt it, and cast it into their mold to produce recycled soap bars. Alongside the production process, students calculate the costs of collection, remelting, and repackaging, and determine a competitive selling price through a basic business model. The final and most impactful stage involves creating a social responsibility proposal: students design an initiative to implement this soap recycling system in underprivileged communities, with the goals of improving hygiene, reducing waste, and creating employment opportunities. This project integrates design, sustainability, chemistry, economics, and social impact, allowing students to innovate with purpose and develop a real-world solution that’s both practical and powerful.