Japanese exclusives

My girlfriend is going to Japanese to run the Tokyo marathon in a week and a half. She has asked me what I want her to bring back which my obvious choice was whiskey. I do have a big collection of about 115 bottles. Probably about 105 being bourbon or rye and the others being scotch and I do have one bottle of Nikka Yoichi. What would be some bottles that would make a great addition? I see alot of Japanese exclusives available online still in the US like WT 12, 4R super premium, Blantons Red and Green, so kinda looking for something I just can’t order online and is worth the trip back.