I love them quite a bit too, both the aesthetics and the sound!
Don't know if you can notice in the picture though, the finish of the chambers is actually different, one is smooth, the other is like a brush finish or it could be describe as one is reflective and the other one is not....
Anyway, since I bought them, I've been applying natural oil to the chambers like 4 times a week, and try to polish the thing using only my fingers. Guess what, it worked, it is very slowly but certainly getting smoother and prettier.
Edited by Allforheather - 12/19/11 at 4:27pm