You can get those peanut cups in Japan, our local Max Valu sells them. Pistachios and cashews are also in the supermarkets and affordable, as is dried fruit. You may not be able to bring honey into Japan.
I suggest you stick with keyrings etc.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.