You are allowed to place three items from your lifetime into a box that will be opened in fifty years. What do you put in, and why?

1) collection of quotes/postsecrets/foundmags (printed)
2) my necklace
3) $100

why?
1) all about how i perceive life
2) been there all the time
3) who knows i might be so broke 50 years from now , or somehow my cpf is all gone. WHO KNOWS I MIGHT GET CHEATED INTO BUYING SOME PRECIOUS STONE?