I don't want to pimp my own stuff here but search Google, Youtube or Vimeo for pedal feedback loops or pedal noise. It's usually abstract drone or noise so not

I don't want to pimp my own stuff here but search Google, Youtube or Vimeo for pedal feedback loops or pedal noise. It's usually abstract drone or noise so not to a lot of people's tastes. There are a few businesses that have sprung up from making or selling products to these artists though.