Jeremy Bell has created a tape-scratching device called the ScrubBoard. A tape loop with a tape head-scrubber that you can manipulate with your hands, resulting in a sound akin to scratching a record. There’s other great features. There’s a foot controller to play, stop and reverse playback of the loop. There’s a ‘rocker’ to cut/fade and mix to the tapes other channels. There’s also a record head to do live looping and scratching!
Nice work Jeremy!