Di Mainstone and Tim Murray-Browne made Serendiptichord, a wearable soundscape interface:

The Serendiptichord is a wearable musical instrument that entices the user to explore a soundscape through touch and movement. Referencing the architectural silhouette of a musical instrument and the soft fabrication of fashion and upholstery, it is designed to entice the wearer to investigate its surface through touch, physical manipulation and expressive movement. Although this acoustic device can be mastered alone, it also holds subtle openings for group interaction.

via [Fashioning Technology]