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LEGO Costume DIY for Halloween

A LEGO costume for Halloween is a quick and easy DIY project! It just takes a few supplies and an hour to put together. Read on for the easy tutorial on how to become a LEGO!

How to make a Lego Halloween costume
How to make a Lego Halloween costume
How to make a Lego Halloween costume

Confession. We were invited to a kids’ Halloween party earlier this week and completely forgot about it until the night before! October has definitely chewed me up and spit me out. Luckily our friends reminded us about the party, but our family costume wasn’t ready whatsoever so we had to find a last minute substitution.

Maggie has a little ballerina dress that she loves, so that was a no brainer. But we were stuck on Henry. He had been playing LEGO all day and I randomly blurted out, “Wanna be a LEGO?!” And he was like DUH MOM YES. So we figured out how to make a LEGO costume for Halloween in about an hour flat. And it’s adorable!

Looking for other costume ideas? Check out our:

DIY LEGO Costume for Halloween

Materials

  • cardboard box or flat cardboard sheets
  • glue gun
  • spray paint in your LEGO color of choice
  • spray paint can lids (other options: pool noodle, cardstock, cardboard tubes, etc.)
  • Dremel tool or box cutter

Make Time: 1 Hour (Plus Dry Time)

  1. Find a box! We happened to have the perfect size box laying around for Henry to fit in (shout out to Cricut, hayyyy), but you can find whatever box works best for the body type of the person you’re costuming. You could also just use flat cardboard and fold it into a box, or make the costume sandwich board style.
  2. Cut out head and arm holes. Cut the head hole big enough for the head to fit through but not so wide that it will slip off the shoulders. We also cut off arm holes that were pretty tall to allow for maximum arm movement. Also cut off any excess length on the box; you want it to end above the knee so that walking is easy.
  3. Glue on the circles. We happened to have a bunch of spray paint can lids that were just the right size. But you could also slice up a pool noodle or a cardboard tube, then cover the ends with circles of cardstock. (Be creative here! There are a million things you could use for the circles! We almost used little disposable paper bowls too but these had a better shape.) Place a line of hot glue around the bottom of the circles and glue them into place on the front of the cardboard box.
  4. In a well-ventilated area, spray paint the costumes using multiple light coats. You want to apply light coats to avoid dripping and allow for quick drying times. We applied three coats and then left the box outside to dry and cure, and to make sure the spray paint smell was gone. I actually helped it along a little bit with a hair dryer on the hot setting to cure the paint.
How to make a Lego Halloween costume
How to make a Lego Halloween costume
How to make a Lego Halloween costume
How to make a Lego Halloween costume

How to Accessorize a Lego Halloween Costume

That’s it! Put it on! Really, you don’t need anything else for the costume. But if you want to match your outfit color to the color of your LEGO costume, go for it! You could also just do leggings or tights and a long sleeve tee.

Henry had requested to be a yellow LEGO so he could “light up the night,” (where do they come up with this stuff?!), and we happened to have yellow pants and shirt to go with it.

Build Your Costume for Comfort

One thing to note about this LEGO costume — if it goes past the kiddo’s waist, he won’t be able to sit in it. So Henry wore it while he was running around, dancing, playing, and that kind of stuff, and then took it off to sit and eat. It’s really easy and fast on-off so it’s no problem to switch it throughout the night.

Would love to see you try this one! If you give it a shot, share photos with us on social! xoxo

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How to make a Lego Halloween costume
How to make a Lego Halloween costume
How to make a Lego Halloween costume
How to make a Lego Halloween costume
Yield: LEGO Costume for Halloween

LEGO Costume for Halloween

How to make a Lego Halloween costume

A LEGO costume for Halloween is fun and easy to create with this simple DIY!

Active Time 1 hour
Total Time 1 hour
Difficulty Easy
Estimated Cost $10

Materials

  • Cardboard box or cardboard sheets
  • Spray paint lids (alternatively, a pool noodle, disposable paper cups, cardboard tubes, etc.)
  • Spray paint

Tools

  • Glue gun
  • Box cutter or Dremel tool

Instructions

    1. Find a box! We happened to have the perfect size box laying around for Henry to fit in (shout out to Cricut, hayyyy), but you can find whatever box works best for the body type of the person you’re costuming. You could also just use flat cardboard and fold it into a box, or make the costume sandwich board style.
    2. Cut out head and arm holes. Cut the head hole big enough for the head to fit through but not so wide that it will slip off the shoulders. We also cut off arm holes that were pretty tall to allow for maximum arm movement. Also cut off any excess length on the box; you want it to end above the knee so that walking is easy.
    3. Glue on the circles. We happened to have a bunch of spray paint can lids that were just the right size. But you could also slice up a pool noodle or a cardboard tube, then cover the ends with circles of cardstock. (Be creative here! There are a million things you could use for the circles! We almost used little disposable paper bowls too but these had a better shape.) Place a line of hot glue around the bottom of the circles and glue them into place on the front of the cardboard box.
    4. In a well-ventilated area, spray paint the costumes using multiple light coats. You want to apply light coats to avoid dripping and allow for quick drying times. We applied three coats and then left the box outside to dry and cure, and to make sure the spray paint smell was gone. I actually helped it along a little bit with a hair dryer on the hot setting to cure the paint.

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4 thoughts on “LEGO Costume DIY for Halloween

  1. I adore this costume! Legos will always be an iconic toy, and Henry looks so happy in these photos ? I also love the idea to use LIDS! You’re going to have me second guessing throwing away anything now, even if it’s empty, because it might come handy in the most unexpected way ?

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