Take a hard-cased suitcase for resonance, tape or hold a piece of nylon cloth to its side (size: kitchen towel), then crumple another piece of nylon into a ball and… read more →
Take a hard-cased suitcase for resonance, tape or hold a piece of nylon cloth to its side (size: kitchen towel), then crumple another piece of nylon into a ball and… read more →