Speaker made from a toilet PVC pipe (how-to in Dutch)
These DIY Speakers Made From IKEA Salad Bowls Look Cool As Hell
About IKEA salad bowls and loudspeakers. | Kvart & Bølge | Audiophile Quarter-Wave Full-Range Speakers |
Raspberry Pi bowl speaker. With two Ikea saladbowls, RPI 2, x400 amp, wifi dongle and Dayton Audio ND91-4 speaker.
Pluto active loudspeaker, conceived by Sigfried Linkwitz, and amazingly realized in chromed metal and glass.