12 Lego-Themed Birthday Decor Ideas That Will Inspire Your Next Party

Lego Duplo bricks
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Whether you've got a Lego Duplo-loving toddler or an older kid who's a master builder, a Lego-themed birthday party will be a hit. Get inspired with these Instagram-worthy ideas.

Jello Cups

Jello cups are an easy make-ahead birthday treat—and how adorable are these Lego Duplo handles?! Add matching balloons to tie the look together for zero-stress birthday prep. 

Utensil and Napkin Holder

Having your child create a Lego utensil holder keeps her busy and having fun while you check more items off your birthday to-do list. (Let's see if crafting a tray buys you even more time!)


Whether you're making homemade cupcakes or going with store-bought, dress up the treats with simple vanilla frosting and edible Legos—made from colorful candy melts. So cute!

Photo Prop

Finding yellow construction paper and markers in your play room is half the task. These expressive wall hangers will bring your Lego themed party to life without having to spend a dime. 


Sugar cookies and Legos are two American classics—so why not combine them?! Simple square and rectangle cookies are easy to turn into edible Lego "bricks" with some colorful frosting. 


Talk about too cute to eat—this Lego Duplo cake is DIY baking #goals.  


Wall decor for now and later—this Lego inspired banner is perfect for birthday celebrations but too cool to toss after the big day. 

Party Favors

The party doesn't stop with goody-bags as awesome as these. All of your eager guests will have trouble following the "take one" rule. 

Party Pops

Creating Lego heads out of cake pops elevates this dessert trend to new levels. These tasty treats embody the happiness all indulging in them will feel. 


Skip the mass emails and get personal with these creative Lego invites. Craftmanship is always appreciated, and all attendees will get a sneak-peek of what's in-store for the big day!

Cardboard Cut-Out

Imagine the smile on your child's face as he poses as an actual superhero? Pushing your artistic boundaries with this interactive photo-booth makes for photos you will adore forever.

Cake Topper

Dessert decorating doesn't get simpler than this hack! Before returning your construction paper and markers to the play room draw up these Lego heads, so your yummy sweets are theme ready.

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