I believe many have seen whisky stone in the market or gift shop. Shops are retailing such stones at high prices but if you get it from Taobao, it will be a lot lesser. From 2-3USD you can get a box of nine whisky stone. The seller even mention that this stones are for export and is FDA approved.
I am glad i got it from Taobao as is it a disappointing product. Firstly, is it not as cold as ice and can’t last long. Secondly, you need to wash the stone which i did not consider when i was buying it. Interesting concept but i think i will just go back to my ice and leave the stones somewhere in the house as decoration. Will get this as a gift for a whisky friend.