How to Make a Time Capsule with Your Family 

Disclosure: This post may contain affiliate links, meaning we get a commission to support this site if you decide to make a purchase through our links, at no extra cost to you. #ad

Let’s be honest: the idea of a time capsule sounds magical, but also like one of those things you say you’ll do and then… never actually get around to. But trust me, this is worth it. Whether you’re doing a family time capsule, a school time capsule project, or marking something big like a graduation or moving to a new home, it’s easier (and more fun) than you think.

And yes, you can make a DIY time capsule that lasts.

So, Why Even Make a Time Capsule?

Because years from now, you’re going to forget what your kid’s handwriting looked like, or what snacks they were obsessed with, or the way your backyard looked before the swing set. A time capsule lets you freeze that little slice of life.

It’s also the perfect outdoor activity for kids that doesn’t involve screens or spending a ton. Even better? It doubles as a sneaky life lesson in memories, patience, and creativity.

What Should You Put Inside?

This is where the fun begins. Here are some of the best items for a time capsule, broken down by occasion and age:

  • For a time capsule for kids: hand-drawn pictures, a letter to their future self, a favorite toy, schoolwork, or a “favorites” list (color, movie, food, etc.).
  • For a baby’s first year: a pacifier, a baby sock, a first birthday card, a list of milestones, or funny moments.
  • For a family capsule: printed photos, a grocery receipt, a newspaper headline, a playlist, and personal letters from each family member.
  • For a special event: graduation tassel, birthday party invite, or a list of “top 5 memories from this year.”

And don’t forget a message to your future self. It can be silly, serious, or somewhere in between.

Choosing the Right Container (It Matters More Than You Think)

If you’re planning to bury your time capsule, don’t grab an old shoebox and call it a day. You’ll want a time capsule container that can handle moisture, bugs, and time.

How disappointing it would be to open your time capsule 10 or 20 years from now and have everything be ruined by not protecting it thoroughly. Start with the best protection and you will celebrate when your family opens your time capsule.

Here are your best bets for time capsule preservation:

Time Capsule tip: If it’s going outside, bury it safely by wrapping your capsule in a heavy duty plastic bag, choosing high ground (not under the sprinkler), and marking the spot.

Or keep it indoors—in the back of a closet or attic—with a “Do Not Open Until 2035” label.

Where to Bury Your Time Capsule (Or Hide It)

If you’re up for it, an outdoor time capsule activity can be a mini adventure. Pick a day, grab the kids, and dig a little hole in your yard or garden.

Not into digging? Store your capsule in a cool, dry indoor spot. Attics, closets, or even under floorboards can work. The goal is long-term time capsule storage where heat, light, and humidity won’t wreck your stuff.

Bonus idea: Make a digital time capsule. Record a video, write future emails to yourself, or store files on a password-protected drive.

Opening a Time Capsule

There’s nothing like that moment when you finally open your capsule. Expect laughter, maybe a few tears, and a whole lot of “I forgot about that!”

Make a note in your calendar—or set a reminder in your shared family email or Google calendar—so you remember to open it.

The Bottom Line

Creating a time capsule isn’t about being Pinterest-perfect. It’s about freezing a little bit of right now so you can come back to it later, and be reminded of what mattered.

Whether it’s for a baby’s first year, a school project, or just an ordinary weekend, don’t overthink it. Just start.

Want to Make One This Weekend?

Look for stainless steel storage containers, waterproof document bags, and silica packs.

We’ve collected what we think are the perfect items needed for your Time Capsule.

Affiliate Links: Making a purchase through our links help support our site, at no extra cost to you.