Just "stumbled upon" the Unprofitable Instruments page. Lots of ideas to steal^H^H^H^H^Huse in smaller and bigger projects...
BTW: I created the discussion because there was apparently no place for dropping links to strange, interesting, silly or plain stupid instrument designs found on "da Net".
The title of the thread may be a bit misleading, with the proud prices they should really be profitable.
Replies
Segaba: "bowed diddley bow" from Botswana:
"El Cuatro Puertorriqueño"
Skandola
Minimalistic bass guitar. Still worth 1500$ (or more)...
http://www.notreble.com/buzz/2012/04/26/bass-of-the-week-lane-poor-...
Revolver Steampunk Bass
The sound of this one must be abyssmal.
Ph'nglui Mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!!!
("In his house at R'lyeh dead Cthulhu waits dreaming!!!")
"Siamese twins" - guitar+mandolin combo, shared body.
Somehow, against all odds, they managed to live out a rich and fulfilling life. Playing
with other instruments, however, was always a source of much embarrassment...