What objects from the society and temporal setting of Romeo and Juliet would you put in a time capsule?
The first thing I would put in the time capsule would be the vial from which Juliet drank the sleeping potion. She was still clutching this in her hand when Romeo found her.
I would also include Romeo's dagger. Romeo and Juliet both used this dagger to end their lives. Without this weapon Romeo could not have killed himself so quickly and possibly Juliet would have awakened and they would be together.
The letter that the Friar wrote that never made it to Romeo would also be in my time capsule. If the messenger had gotten the note to Romeo he would have known that Juliet was just sleeping.
Finally I would include a cross. Religion played such a huge role in the lives of the characters in the play and the people of the time period.