Friday, November 9, 2012 5:41:54 AM
The kalimba is, indeed, one of the coolest and simplest instruments around. I own two, one of which is a Hugh Tracey - which is specifically tuned to Western scales.
However, I think the "coolest instrument you've probably never heard of" is the hang [drum], which was developed very recently (2000) by a Swiss company. Here`s an example:
Friday, November 9, 2012 4:49:28 AM
Gonna get me one of those and throw it straight on the pile in the corner with the electric guitar, the acoustic guitar, the drums, the violin, the piano, the flute, the trumpet and the stylophone.