There is a growing movement in undergraduate computer science (CS) programs to embed ethics across CS classes rather than rely on standalone ethics courses. One strategy is creating CS assignments which require students to address ethical issues inherent to the code they write. Previous studies evaluate ethics-based CS assignments using surveys with a subset of students who have completed the assignment. We built on this work by conducting 90-minute focus groups with students who reviewed a new introductory ethics-based CS assignment. In this experience report, we present a case study describing our process of designing an ethics-based assignment and proposing the assignment to students for feedback. Participants in our focus groups not only shared feedback on the assignment, but also on the integration of ethics into coding assignments in general, revealing the benefits and challenges of this work from a student perspective. We also generated novel ethics-oriented assignment concepts alongside students. Deriving from tech controversies that participants felt most affected by, we created a bank of ideas in order to provide a starting point for further curriculum development.