This workshop invites participants on a sonic expedition through the conference venue and its surroundings, transforming them into a post-digital sonic playground. After a short introduction to the construction and use of DIY piezo microphones, participants collaboratively explore the acoustic qualities of everyday spaces and objects. Guided by the ideas of post-digital storytelling (Jordan, 2019), recorded sounds, resonances, and found materials are transformed into miniature sound stories and improvisational performances. Drawing on concepts of Maker Music Education (Treß, 2024) and Critical Eco-Literacy (Schmid, 2023; Shevock, 2018), the workshop links artistic sound exploration with reflection on sustainability in a technology-driven world and material agency. In the final part, developed teaching materials and design principles are presented, fostering sustainable, collaborative, and creative forms of musical learning.