Right, out with fixed fret /fixed note instruments. Lets get out the moveable fret/ replaceable note instruments and go for it. Start tweaking those Hurdy Gurdies, Sitars, lutes with tied string frets, marimbas, and bottles partly filled with water. Tune them all to completely different modes, get some enthusiastic music theorists, insist on them forming an ensemble, and book a ward in a mental hospital.
Dont you just love threads about modes!