Life In 19x19

Does anyone know where I can buy (to be delivered to US) straw cups for stones? The kind popularly used in China. I am interested in buying just the cups, without stones. I checked YMI, but they don't carry these anymore.

(If anyone is from the general Boston area and has a suggestion of a physical store where I could buy some, that would also be helpful.)

Something like this: http://shop.way-of-go.com/shop/archive/item_302/

Here's one place selling them, but they only have them listed online with stones. You could probably try contacting them to see if they would sell you just the bowls.

http://www.moriental.com/Go-Game-Stones ... _1207.html