Facebook.watch, they are existing, though! they say:
we’re hosting a workshop at the university of liechtenstein on the topic “soundarchitecture – music without laptops”. we built an oakley modular during the week including an mfos sequencer, and the students came up with this fantastic design: a modular synthesizer in an empty oil barrel. this is the top layer, the sequencer, oakley midi interface, oakley little lfo, and a stylophon-style “keyboard” built from prototypeboard in the center. pictures of the finished unit will follow tomorrow.
it’s called drum herum (which does NOT mean “drums”)
another image can be seen there (facebook)