all tmrw's parties started out of the research into the ability of any object to produce sound as a give-away for the physical nature of sound itself as a medium.
It consists of a variable number of ceramic discs each of them welded together with a series of burned out sparkles, usually used for New Year's celebration. Connected to an amplifier, they become part of the sound producing system (together with the ceramic discs) but they also generate their own sound.