Free Printable Guess the Lego Bricks in a Jar -

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It’s official! My second little has entered the world of double digits. And this mama wasn’t ready. It’s crazy to think that both my littles are over a decade old.

But the best news is that birthday parties are back in full force. After taking a three year hiatus thanks to you know what, we are back to inviting friends and family over to celebrate.

Following his current obsession, the theme this year was Legos. And with the big gift being a trip to Legoland, it seemed appropriate that a Lego themed party follow suit.

One of my rules with birthday parties as the kids have gotten older is to give them more responsibility with planning them. I work with them to choose a theme, make a guest list, create a menu and figure out the entertainment.

For this Lego party, the focus was building and playing an assortment of Lego party games with friends. And it was tons of fun.

We kicked off the party with this Free Printable Guess the Lego Bricks in a Jar Game. The kids loved analyzing the different Lego bricks in the jar and making an estimate on how many there were. They filled out little cards with their guesses.

At the end of the party, we reviewed the guesses. The person with the closest guess won. The best part – the youngest guest actually made the best guess. I was so glad that she got to receive such a special prize. It’s hard being the littlest sometimes.

How to Set Up the Game

To set up the game, choose a variety of Lego bricks and place in a large clear mason jar (affiliate). Although you can use any size jar, don’t make it too big or it might be too difficult for guests to guess. If you have younger kids at your party, you can also use Duplo bricks for guessing.

Be sure to have a designated counter who keeps track of how many bricks are in the jar. This person should not participate in the guessing game.

Then, download your Free Printable Guess the Lego Bricks in a Jar Game sign and guessing cards. The sign measures 8″ x 10″ once trimmed and the guessing cards are laid out 8 per a page. Print out the design on 8.5″ x 11″ medium to heavy white cardstock (check out our printing tips here) (affiliate). Trim out the sign and cards using a paper trimmer or scissors. (affiliate)

Place the jar of bricks in a spot where guests will see it during the party. We introduced it in the beginning of our party and passed it around for the kids to look at. Also, keep the cards and pens nearby to write down guesses.

After everyone has made a guess, check the guests’ guesses to the actual number. The person who is closest wins a prize.

Creative Lego Party Game Prize Ideas

There are lots of fun Lego party game prizes that you can give out to guests. Here are some of my favorites.

A custom Minifigure – We built a custom Minifigure at our local Lego shop. Then, we used him as the special prize for the winner.
A Lego keychain – Check out this easy tutorial to make this inexpensive Lego themed prize or buy them premade. (affiliate)
An assortment of Lego bricks – Purchase a large mix of basic Lego bricks and separate into smaller sets to give away as prizes. (affiliate)
A surprise Minifigure – These little surprise packages continue to be very popular with kids.
Lego Building Block Chocolates – Check out my easy tutorial for making these colorful chocolates here.
Lego Minifigure Head Cookies – Package in cello bags and give out the the winner. (affiliate)
Lego Minifigure Shaped Crayons – Give a package of crayons and add a Free Printable Lego Coloring Page for a fun prize. (affiliate)
Lego Stunt Bike Set – One of my favorite small Lego sets that has recently come out is this Lego Stunt Bike Set. I love that they pull back and race. And the set is reasonably priced, so it makes a great Lego party prize. (affiliate)

How to Make the Game More Challenging

If you are hosting a Lego party for older kids and want to make the guessing game harder, here are some easy ways to make it more difficult.

Fill the inside of the jar with a cardboard tube.

Make the jar just an illusion. Place a paper towel roll or other cardboard tube upright in the center of the jar. Then, fill Lego bricks around it. This will make the jar look like its more filled with Lego bricks than it really is. And will mean you need to use fewer bricks.

Use super tiny bricks.

Instead of filling the jar with an assortment of different sized Lego bricks, use single studs and other very small bricks. These will be much harder to count and make it difficult to accurately guess.

Fill in the jar with small bricks.

Another option is to fill the jar with standard sized bricks, but then add small bricks to the nooks and crannies. Another way to make it hard to count them.

Use Minifigure heads.

This idea comes from Mr. Mountaineer and I definitely did not use it. But if you have enough Minifigure heads (and other body parts), you could fill the jar with those. They would be really hard to estimate.

Need to still download your Free Printable Guess the Lego Bricks in a Jar Game? Be sure to download your game below.