Silvereye: If you are located in Hong Kong, an Oriental grocery store would likely carry them. Or you can try purchasing some from a Chinese restaurant. I am able to get them from a wonderful neighborhood restaurant, but I also get them from an Oriental grocery store & supermarkets that carry ethnic foods.
As for Runes, I used to use them but am not as familiar with them as some of the other forum folk are.
I think you can ask about Runes in the "Astrology & Divination" forum.