My massage therapist has a 20″ crystal singing bowl and while I love crystal singing bowls, the one he has is horrible after a session, its loud and usually gives me a headache.  I have similar bowls set for my doorbell and my alarm clock but what I didn’t realize until now, is that they come in different tones, if he would get one that was  in C#, like this one,  or even one in D, then life after the massage session would be wonderful. This site Silver Sky Import has crystal singing bowls in various sizes, tibetan singing bowls , gongs, and more unique mediation and relaxation equipment from Tibet and Nepal.  What is really cool about their site, is that they have the tones embeded with the products so you can hear what it sounds like before you buy it and they are cheaper than other vendors. Check out Silver Sky Imports for their Crystal Singing Bowl and many other cool tibetan bowls.