Many international programmes include work-integrated learning (WIL) and community-based service learning (CBSL) in order to teach students to collaborate and increase their intercultural sensitivity. The support curriculum for these experiences, however, may implicitly emphasize a divide between overseas “experience” and “reflection” facilitated by staff from home. This chapter describes the Classroom of Many Cultures project, a curriculum design project that used principles of co-creation for a series of learning modules to support international WIL and CBSL. These modules use pedagogical principles and activities that originated with host country staff, incorporating intercultural respect and collaboration into pedagogical design. The project involved significant refining of the co-creation method itself over time; the chapter explores the lessons that the research team learnt during the co-creation process.