• Cart
    • $0.00
  • Building Block Lifestyle Photo
  • Building Block

    These party supplies are the perfect Building Blocks for your son or daughter's next birthday bash. Creating a colorful, construction-themed celebration is a snap with help from the pros at Birthday Express.

  • Buy A Complete Party In A Box Now >

Lego ® Inspired Party Theme

Top Products

Sort by Display:
45 items
Narrow Your Results
View More

Building Block

Find the perfect building blocks for your next big birthday bash!

Create a colorful and creative-themed birthday celebration when you incorporate Lego ® Inspired building blocks that light up a room. Bring your son or daughter's favorite activity to life with everything from party supplies and games to awesome activities and favors. Your guests won't be able to stop smiling when they're surrounded by the cheerful colors of each and every building block in the party room. After this celebration, each little one will be forever dreaming about their building-block creations, as well as all the fun they had at your event!

  • Find

    First thing's first, you've decided on a theme. Not sure where to go from here? Visit the Birthday Express Ideas and Inspiration Blog for tips and tricks to help you make this the shindig the best birthday party on the block. You'll find games, decoration inspiration and yummy food ideas to get you in the party mood.

  • Quick
    Planning Tip

    It wouldn't be a building-block party without actual Lego ® Inspired building blocks to play with! Have a small kit ready for each of your guests. From guessing games to seeing who can build the fastest, the possibilities are endless. These small kits will also make excellent party favors!

  • Set The

    Let your guests know how excited you are to be inviting them to your building-blocks party. Inspired by Lego ®, as soon as they see the well-known colorful blocks on the front of these invitations, they'll be counting down the hours until the special day arrives.



Let everyone know it's a Lego ® inspired party from the moment they walk in the door. There's no need to skimp on decorations for such a special birthday boy or girl, especially when you can find everything you'll need and more right here. From balloon bouquets to table decorations and tableware, there won't be anything missing from your building block-inspired party. Lively and colorful decorations will put each guest in a creative mood so they will be ready and excited for all the games and activities you have planned!

Balloon Bouquet

If the birthday boy or girl is sitting at the head of the table, use this colorful balloon bouquet to set his or her chair apart from the rest. Balloons also make fun and festive decorations for the rest of the party area. It wouldn't be a true birthday party without balloons.


This dual-purpose tablecover helps you decorate for your birthday bash while protecting your tabletop all at the same time. Punch up your playful party décor even more when you cover all of the surrounding tables with solid-colored tablecloths to coordinate with the Lego ® inspired theme.




Why not have everything match on your son or daughter's special day? The kids will love seeing the building-block theme show up everywhere, even on their plates and napkins. This is your one-stop shop for colorful plates, napkins, cups, bowls and even plastic ware. If you can get everything you need right in one place, why would you want to go anywhere else?


A birthday party is all about the fun. Keep your guests entertained for hours with multiple games and activities they can enjoy. Not only can they play with their very own building blocks, but a piñata game will provide just the right amount of added excitement. Your guests will still be talking about how much fun they had a few weeks down the road.


Let your little guests be the star of the party with this star-shaped piñata game. Fill it with treats and watch their faces light up when the candy and prizes cover the floor. Have the kids take turns with the piñata buster as they tackle this classic party game.


Blowouts are not only an entertaining party item, but they're a great take-home favor as well. These building-block blowouts will perfectly match your colorful theme and put a smile on the faces of your little one's friends.



Try incorporating these fun phrases into your invitations, DIY decorations, and other pieces of the party!

"To build or not to build, that is the question."

"Playtime is important. Sometimes it doesn't matter what you are building, as long as you're having fun."

"Color doesn't matter. A blue brick will fit in the same space as a red brick."

"I see, I build, I play."

"Teamwork creates the building blocks for success."

"There is strength in numbers. When the bricks stick together, great things can be accomplished."

"To invent, you need a good imagination and a pile of stuff."

"Keep calm and build a house."


Party Favors

Don't let your guests leave without a Lego ® inspired party treat. Give them something to remember all the good times they had at your birthday party. You'll impress the other parents with your party-planning abilities when they pick up each one of their smiling children. You can go all out with complete treat bags, or simply pick up a few trinkets you think the kids will enjoy. Take-home treats are an unforgettable birthday party essential.

  • Treat Bags

    These Lego ® inspired party treat bags are perfect for holding loose building blocks, candy and other take-home toys. Get creative and fill these with the birthday boy or girl's favorite sweets for your guests to take home to their families.

  • Cone Hats

    It wouldn't be a kids' birthday party without these adorable cone-shaped party hats. Anyone who walks into a party and sees these hats knows they're in for a lively and enjoyable party experience. Match these Lego ® inspired hats to your party theme and even your guests' heads will act as party decorations.

  • Cupcake Toppers

    Say goodbye to boring frosted cupcakes. Lego ® inspired cupcake toppers will instantly spice up your desserts and have each guest reaching for seconds. These cupcake toppers are a simple yet bright and multicolored way to enhance your party décor. These are the perfect complement to those rainbow sprinkles.