This document summarizes work done by a student team to design a digital tip jar app called Felicity. The team conducted stakeholder interviews, identified key themes around engagement and discovery, did user research with fans and musicians, created personas and affinity diagrams, designed wireframes and a prototype, and conducted usability testing. Testing provided positive feedback but also identified issues like too many clicks, unclear terminology, and security concerns. Recommendations were made to address these issues and enhance features for both fans and musicians in a future state.