ime capsules from last school year on Tuesday, Sep. 11, 2018 at Sugar Grove Elementary School. Every third grader at Sugar Grove spends part of their library time for about nine weeks making a time capsule. They stuff personal mementos, a photo of themselves holding a sign with the year they are expected to graduate high school, a survey listing their likes and dislikes, a drawing of their hand and a memento from a big event that happened that school year into a Pringles canister.