This paper provides a study of a workshop which invited composers, musicians, and sounddesigners to explore instruments from the history of electronic sound in Sweden. The workshopparticipants applied media archaeology methods towards analyzing one particular instrument fromthe past, the Dataton System 3000. They then applied design fiction methods towards imaginingseveral speculative instruments of the future. Each stage of the workshop revealed very specificutopian ideas surrounding the design of sound instruments. After introducing the background andmethods of the workshop, the authors present an overview and thematic analysis of the workshop'soutcomes. The paper concludes with some reflections on the use of this method-in-progress forinvestigating the ethics and affordances of historical electronic sound instruments. It also suggeststhe significance of ethics and affordances for the design of contemporary instruments.