Finding the perfect Halloween costume ideas for siblings can be a treat (or a trick)! Whether your kids are looking for something funny, classic, or downright adorable, matching sibling costumes can bring out their personalities, making them the stars of the night. Here are some ideas that range from DIY-friendly to laugh-out-loud funny, and even a few simple ones for those last-minute costume emergencies.

Classic & Funny Sibling Costume Ideas

Halloween costumes for siblings can be fun, classic, or even hilarious when done right. For siblings who love making people laugh, classic costume duos are sure to do the trick. Think about family Halloween costume ideas that play on their personalities or bring a little humor into the night:

Peanut Butter & Jelly: This classic combo is as adorable as it gets. Plus, it’s simple to make with oversized cardboard pieces painted to look like a jar of peanut butter and a jar of jelly. All you need are some comfortable clothes underneath, and voilà—you’ve got a funny, cute duo.

Thing 1 & Thing 2: Dr. Seuss fans? This one’s a must-try. All it takes is some red clothes, white circles with “Thing 1” and “Thing 2” printed on them, and a bit of blue hairspray for that wild Seuss-style flair.

Dynamic Food Combos: Popcorn and soda, burger and fries—any fun food pairing works here! It’s a perfect go-to for funny brother and sister Halloween costumes and can be made with oversized clothes, cardboard accessories, and a whole lot of laughter.

funny brother and sister halloween costumes

Pop Culture-Inspired DIY Sibling Costumes

Who doesn’t love a little pop culture throwback or homage to favorite characters? These DIY sibling costumes for Halloween are easy to make and instantly recognizable, so your little ones will be the stars of every trick-or-treat stop.

Mario & Luigi: The iconic Nintendo duo is a go-to for easy sibling costumes. Grab some overalls, add a red and green shirt, then finish the look with a cap and mustache. Not only is it classic, but you might even score some extra candy for nostalgia points.

DIY sibling costumes for Halloween

Harry Potter & Hermione Granger: Perfect for siblings who love magic, a Harry and Hermione costume needs just a couple of robes, wands, and maybe some glasses. If you have three siblings, throw in Ron for a full trio.

Buzz Lightyear & Woody: For siblings who are Toy Story fans, Buzz and Woody are a perfect match. A cowboy hat and vest for Woody, some green and purple for Buzz, and these two are all set to make Halloween infinity and beyond fun.

Animal and Creature Combos

Animal costumes are always a hit, especially for younger siblings who might not be ready for complex costumes. Plus, animal pairings can be easy, cute, and incredibly photo-friendly.

Cow & Chicken: Picture one kid as a fluffy chicken and the other as a spotted cow—adorable! These costumes are comfy and easy to make from pajamas or onesies, with a little felt for the final touches.

Family Halloween costume ideas

Bee & Flower: This sweet pairing is perfect for toddlers. A yellow-and-black striped shirt turns one sibling into a busy bee, while the other can dress in green or a petal-covered outfit to be a flower. It’s a lighthearted costume that’s unique yet easy to pull together.

Cat & Mouse: This classic combo is timeless. Dress one as a mouse with round ears and a long tail, and the other as a black cat with pointy ears. It’s simple, fun, and perfectly sibling-friendly.

Easy Halloween costumes for siblings

FAQs 

1. How can I make matching Halloween costumes for brother and sister at home?

Simple props like cardboard, felt, and face paint can make most sibling costume ideas doable at home. Think about costumes that use clothing you already have, and add small DIY touches to complete the look.

2. What are some fun sibling costume ideas for toddlers?

Consider simple, comfy costumes like animal pairs (bee and flower, cat and mouse) or cartoon characters like Mickey and Minnie. Easy to wear and perfect for little ones!

3. What should two sisters be for Halloween?

Elsa and Anna, peanut butter and jelly, or even matching unicorns! Sisters can go as iconic duos or choose fun, whimsical characters they both love.

Final Thoughts 

Whether you’re looking for quick and easy ideas, a little humor, or something straight from the movies, These easy Halloween costumes for siblings have endless potential. The best part? You’ll get amazing photos, they’ll have a blast together, and you might just inspire other parents looking for sibling costume ideas.

This Halloween, let the costume fun double with creative sibling costumes that everyone will love. Happy Halloween, and may the treats be plentiful! 🎃

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