I was commissioned by artist Jenny Gaskell to produce a series of 3D printed cups. Each cup would, when placed against a wall, would play back an interview with a member of the public, in an invisible, almost magical way. You can find out more about the project here: https://www.jennygaskell.com/portfolio/with-my-ear/
Image credit to Layla Sailor, http://laylasailor.com/.