'Omiyage' You Can't Buy Anywhere Else in Japan

http://en.rocketnews24.com/2013/10/04/we-visit-a-hidden-store-on-the-imperial-palace-grounds-offering-items-you-cant-find-anywhere-else/
This shop, largely unknown to even Japanese people, might not be much to look at from the outside, but they sell a wide range of items from food to stationery to alcohol.
http://en.rocketnews24.com/2013/10/04/we-visit-a-hidden-store-on-the-imperial-palace-grounds-offering-items-you-cant-find-anywhere-else/
Left: a bottle of Japanese sake (nihonshu) for ¥1,600 (US$14); right: wine for ¥3,500 (US$31). We recommend the nihonshu bottle called Gyoen. The taste is smooth and truly delicious, not to mention it was made in a famous sake brewery in Japan. Such a caliber of sake for this price is ridiculously cheap! You should absolutely buy some for a souvenir! Of course, it can only be bought here!
http://en.rocketnews24.com/2013/10/04/we-visit-a-hidden-store-on-the-imperial-palace-grounds-offering-items-you-cant-find-anywhere-else/
A tea cup with the Chrysanthemum Imperial Seal printed on it for ¥500 ($4.50).
http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Imperial_Seal_of_Japan.svg
The Imperial Seal of Japan is a 16-petal chrysanthemum with several petals in the back.
http://en.rocketnews24.com/2013/10/04/we-visit-a-hidden-store-on-the-imperial-palace-grounds-offering-items-you-cant-find-anywhere-else/
Bowl with the Imperial Seal print ¥500 ($4.50)
http://en.rocketnews24.com/2013/10/04/we-visit-a-hidden-store-on-the-imperial-palace-grounds-offering-items-you-cant-find-anywhere-else/
This bowl is actually Imari porcelain which is made mainly in the area of Arita Town in Saga Prefecture and is considered pretty valuable stuff.