The document proposes starting a business making DIY school backpacks. Old bags would be refurbished and customized with fabrics and colors selected by customers. The target audience is students and teachers at the author's school, with plans to later expand to other schools, parents, and customers. Bags would be made at home initially and sold at school bazaars and online. Startup costs are estimated at €20 with fixed costs being the same. Variable costs are around €5 depending on customization. Bags will be sold at a 20% profit margin above costs. Potential competitors identified are other websites that allow customizing or printing photos on bags.