I haven't used your service, so I be making some wrong assumptions here, but if some users would like to be able to find some of the candies they have eaten, yo

I haven't used your service, so I be making some wrong assumptions here, but if some users would like to be able to find some of the candies they have eaten, you could include a list in their account with the name of candies they have received in Japanese (and English or Romaji) and a photo. Probably should wait until after they receive the package to maintain the element of surprise.