Since the demise of LSando, I have received OH SO MANY email requests regarding alternative US retailers. After a great deal of investigation, I know of only one reliable source which sells authentic Japanese pipes *AND* authentic Japanese tobacco.
Please say Hello to Medwakh.com.
Medwakh specializes in Arabic pipes and tobacco, but they also have an excellent selection of Japanese Kiseru pipes and sell the traditional Japanese Koiki tobacco.
I (very) recently ordered both a pipe and tobacco from Medwakh to see how reliable they were. I am pleased to say that my order was shipped within one day (everything I ordered was "in stock") and I received tracking numbers for my shipment.
I already possess my personal quota of Kiseru, and I have a nice collection of (Turkish) Meerschaum pipes, so I was very intrigued by the Arabic "medwakh" pipes and tobacco predominantly sold by Medwakh.com. I (of course) indulged myself and bought one camel bone pipe and a good deal of the house special of "hot dokha" tobacco. I will let you know my impression/experience in a later post.
For those unfamiliar with Arabic Dokha tobacco, I posted a brief description here, written by Medwakh.com owner Bassem Chahine.
If you are interested in Kiseru pipes and tobacco, or more broadly ethnic smoking experiences, SaruDama can now fully recommend Medwakh.com