[Tokolosh]

I'm not sure what it's called pork, but I can ask him. He makes them out of sensors that are normally used for security (burglary) purposes and he then modifies them in such a way that the infra red can be converted into sound, more like noise and static. You can literally scratch vinyl in midair. Awesome stuff. He's making one for me right now, which I am going to use for an interactive installation.