Time Capsule - Form Time Activity

I created a time capsule a few years ago.
I used it with my Year 7 form at the end of the school year. They wrote down their responses to questions such as favourite subject, worst subject, favourite food from the canteen, the job I want in the future is, the best thing about being in year 7, funniest thing that has happened in year 7, height, shoe size and others. I also leave a space for them in the middle where they can put a picture of themselves. I have kept it in a safe box at the back of my cupboard.
It will be a lovely (and embarrassing) memory for them.