For their final project (3 weeks) the students use materials de- veloped in the previous assignments in a project of their choice. Project ideas range from more involved hacking on toys, to elec- tronic music compositions using the sound clips collected during the semester, to site-specific sound-art installations, to large as- semblages of custom oscillator circuits, perhaps used as a live- performance instrument. The students propose their own final project either singly or in small teams, and the final projects are presented in public demonstration at the end of the semester.