tibetan singing bowlz..

http://meditationyogapilates.com/singing-bowls/

*a few useful websites:

http://tibetansingingbowls.info/

http://buddismnews.blogspot.in/

http://news.sciencemag.org/sciencenow/2011/06/singing-bowls.html

http://www.bbc.co.uk/news/science-environment-13972556

*music:
http://www.youtube.com/watch?v=VFMgeWkYsDY