After looking at the Sew-O-Phone and the Vacumonium, there is another work by Dennis de Bel I would like to share with you. This is the Brick-Up, a concrete pick-up. I do not know if the concrete body improves the sound, but it does look great!
As Dennis de Bel writes on his website, the Brick-Up can be part of a concrete pavement and become a real ‘stratenspeler’ (Dutch for ‘street player’). I think it is better off inside the house though. A maximum of ten Brick-Ups is custom made on request.