Looking for some of these. (Not the laptop, the plastic case in front of the laptop.)

cmeckhardt successfully found one, but only one, at Kotobukiya. We're looking for more of them.



The lid says, "If it always has folca an important thing will not forget":



They are apparently easy to find in Hyaku-en shops and Kyuujuu-kyuu-en shops (100 yen shops and 99 yen shops). Unfortunately we don't live very close to one.