According to MyKidsAdventure.com, some things to put into a time capsule for kids include letters to be opened in the future, lists of the child's favorite things, photographs and drawings. It is important for kids to take their time and create meaningful artifacts to be uncovered by their future selves.
Parents or educators may write letters addressed to kids that talk about what the child is like today compared to how they might be in the future. Similarly, children should write their own letters to their future selves, discussing how they are now and what they hope they will be in the future. In addition, some things to include photographs and drawings of include the child's appearance currently or the child's home or school.