4 Adorable, Homemade Sibling Halloween Costumes Everyone Will Love

Homemade sibling Halloween costumes make the holiday even more fun. We are HUGE fans of Halloween. Perhaps it’s the smell of pumpkin spice in the air, or maybe it’s the promise of candy at the end of the month. Either way, we’ll take any excuse to dress up the kids in super cute costumes and take photos.

That said, we cringe at the thought of going into one of those Halloween stores and spending our hard-earned money on pieces of disposable clothing (at least until the end of the season when we’re all looking for some cheap dress-up clothes for the kids to play with the rest of the year, right?). Granted, we also hate the idea of spending a ton of money on a higher-quality costume from a boutique shop. Because, let’s be honest – if it’s that nice, that outfit is getting sealed back up in whatever hang bag it came in and put into storage for safekeeping. Maybe our grandkids will wear it again, or not.

Wouldn’t we all prefer to spend money on pieces of clothing that can serve multiple purposes? And that my friend is why we love homemade sibling Halloween costumes. Whether you’re the type that likes to plan ahead, or you’re a last-minute kinda gal with limited time and supplies, Primary.com has colorful basics that serve as a wonderful baseline to make the perfect Halloween costume. In fact, we took four of their basic pieces to create these super simple and fun costumes.

Dinosaur Homemade Sibling Halloween Costumes


A couple of years ago, one of the kids received a dress-up kit from Amazon. This particular kit included pieces to become a dinosaur but lacked a solid base. Soft, tag-free green pajamas were all we needed to turn our son into a roaring dinosaur! Don’t have dinosaur arms, headpiece, or tail handy? No worries. Here’s an alternative way to create a similar look.

You’ll Need: 


You can make dinosaurs in different colors for coordinating Halloween costume ideas for siblings. If you go the lazy route, as we did, then at the end of the night you can simply take off the extra pieces and tuck your kid into bed. Comfy pajamas for the win!

Superhero Homemade Sibling Halloween Costumes Are Out of This World


In the spirit of staying comfortable and saving the world, we decided to tap into our inner superhero. Once again, we built on pieces we already had in our dress-up box.

You’ll Need: 

  • “The PJ Pant” in blue
  • “The Long-Sleeve PJ Top” in blue
  • [amazon_textlink asin=’B07G3F1BTF’ text=’Superman cape and mask’ template=’ProductLink’ store=’bomllcdm-20′ marketplace=’US’ link_id=’b6ad4987-c660-11e8-b66e-4f1a816b026a’] OR create your own with red felt
  • Printed Superman emblem from the internet (for tracing)
  • Red felt (1 yard of felt and 1 sheet 9 x 12 inches)
  • Yellow felt (1 sheet 9 x 12 inches)
  • Safety pins
  • Red electrical tape (duct tape will also work)
  • Double-sided fabric tape
  • Hot glue gun and sticks
  • Scissors


  1. For the cape (in case you don’t already own a cape and mask): Cut a large rectangle from red felt and safety pin it to the back collar of the pajama top.
  2. For the S emblem: Find the Superman logo on the internet. Cut and trace the emblem onto to red felt, and cut a matching yellow diamond-shaped backing for the S. Hot glue together and attach to the front of the pajama top with fabric tape.
  3. For added effect, use red electrical tape to add a belt (not pictured here): Make the diamond shape for the center of the belt. Use the same tape around the pajama pant waist to make the rest of the belt.

If Superman isn’t your child’s favorite superhero, just choose the appropriate pajama top and bottom colors to go with your cape and mask. 

Cruella Deville


Sometimes a piece of clothing is just begging to be used for Halloween.

For example, this black and white spotted coat has been our go-to for a number of costumes over the past couple of years, including its most recent use on the 100th day of school as this 5-year-old transformed into a 100-year-old lady.


Before she outgrew the coat, we decided we should have a 101 Dalmation-themed Halloween. The sibling Halloween costume ideas were simple: Cruella Deville and a Dalmatian puppy.

You’ll Need: 

  • “The Dress” in black or, if it’s cold on Halloween night, try the French terry dress.
  • A black and white spotted coat
  • [amazon_textlink asin=’B07F85DCY9′ text=’Black and white wig’ template=’ProductLink’ store=’bomllcdm-20′ marketplace=’US’ link_id=’4d293c95-c663-11e8-a674-9db1a4b60bce’]
  • [amazon_textlink asin=’B07F67D8NW’ text=’Long red gloves’ template=’ProductLink’ store=’bomllcdm-20′ marketplace=’US’ link_id=’75a5ebd6-c663-11e8-bbef-8701184a9940′]
  • [amazon_textlink asin=’B00GCUWMIA’ text=’Long cigarette holder ‘ template=’ProductLink’ store=’bomllcdm-20′ marketplace=’US’ link_id=’8d3828f3-c663-11e8-96b1-1b80321e0619′]
  • Black shoes
  • Dalmatian accessory (either in the form of a sibling or stuffed animal)

Of course, not everyone has a black and white coat, but part of the joy in making a DIY Halloween costume for your kids is utilizing materials you already have to create something unique.

Notorious RBG

Speaking of unique, how about a Justice Ruth Bader Ginsberg (or any justice) costume? We love the idea of choosing political or pop culture-related costumes. While Justice Ginsberg may not have had her life on trial in the recent weeks, dressing as a Supreme Court Justice will most definitely catch homeowners off guard on Halloween night. It can later be used for “Career Day” at school.


You’ll Need: 


  1. For the lace jabot: Fold a length of white lace fabric into a rectangle and safety pin it to inside front collar of the polo shirt.
  2. Accessories: Glasses, clip on earrings, hair slicked back into a bun, and a deadpan look.

Too serious? Another costume you can easily create with “the dress” is “Breakfast at Tiffany’s.” 

DIY Halloween costumes for kids can be as easy or complicated as you want. All it takes is a little imagination and crafting skills, and you’re sure to create memories for your kids that will last a lifetime. Happy trick-or-treating!


Looking for more Halloween inspiration? Check out these Last Minute DIY Halloween Costumes.5R6A6193-Edit




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Ashley Sisk
Ashley Siskhttp://ashleysisk.com
Ashley lives in North Carolina with her husband, two kids and Kitty Paw. She’s a work-from-home mom with a natural light photography business and a passion for sharing everything she knows. Since leaving the corporate world, she now spends her time trying to get through elementary school with her daughter, chasing her firefighter loving little boy, writing and finding ways to enjoy life. You can find her on Facebook, Google + or on her website.