How to Organize a Halloween Costume Swap

A Halloween costume swap is a genius way to keep Halloween affordable while giving outgrown costumes another year (or more) of use. You’re probably already doing a version of this by passing along outgrown costumes. Making an event out of it opens access to even more families.

The idea of turning costume swapping into an organized event gained momentum with National Costume Swap Day, created by mother-daughter team Lynn and Corey Colwell. Green Child first shared their project back in 2011, and the idea is just as practical today.

You can organize a small swap among friends, school families, or a homeschool group, or turn it into a larger community event. Either way, families bring costumes and accessories they no longer need and exchange them for something new-to-them.

Why Swap Halloween Costumes?

Costumes are one of the easiest parts of Halloween to reuse. Kids outgrow them quickly, and many are worn only once or twice before ending up tucked away in a closet.

A costume swap keeps those items circulating instead. It can save families money while reducing the demand for newly made costumes, packaging, and shipping. It’s one simple way to make Halloween a little greener without taking any of the fun out of choosing a costume.

Ready to organize your own? Here’s how to make a Halloween costume swap run smoothly.

Host a Halloween Costume Swap

Costume swapping is a brilliant idea. If you’re like me, you’ve probably never thrown last year’s costume in the garbage. Instead you pass it along to a younger relative, friend, or donate it. And while that’s the responsible thing to do… your child still needs another costume when October 31st rolls around again. Costume swapping is the win-win solution for kids, parents, and the planet.

You can make it a small party or a larger community gathering if you have the time and energy to organize it. Whichever option you choose, here’s an outline of how to manage it.

Before you start, decide whether your swap will be a one-for-one exchange or a more casual “bring what you can, take what you need” event. Either can work. The important thing is making the rules clear ahead of time.

1. Set a Date and Time

A Saturday in late September or early October typically gives everyone enough time to work out their kids’ costume details before the big night arrives. It’s also a great time to start getting in the mood for Halloween.

2. Secure a Location

A local park makes the perfect outdoor location for kids. Your local library might have a meeting room if the weather is unpredictable. For a small gathering among people you know, you can always host it in your home or backyard.

A larger gathering will result in more costumes for participants to choose, so keep that in mind.

3. Invite Families

For a small party, you can text, email, or evite your friends. For a larger gathering, make signs for community spaces or start a social media event and encourage people to share. Some of the swapping can happen via the group page for those who can’t attend in person or who are looking for a very specific item.

Be sure your messaging includes instructions on what parents should bring (complete costumes, accessories, dress-up items, etc.)

4. Collect and Organize Costumes

Most people will bring their own costume to the party and leave with another, while others are happy to donate without attending the event. Offer a drop-off location for these items, or have some friends help collect them.

Be sure to spread the word that costumes are accepted without attending. You’ll end up with more options. And speaking of options, you don’t have to bring only store-bought costumes to the swap.

If you got creative with DIY in the past, bring those pieces and accessories. Or share outgrown elements from your child’s dress-up cache to share with other parents. An old dance recital tutu might be the piece another child needs for a fairy costume.

5. Set the Rules

Decide how your costume exchange will work and let everyone know the rules ahead of time. For a small, casual swap, a “bring what you can, take what you need” approach may be all you need. For a larger event, you might use a one-for-one system where each costume or accessory brought earns the participant something similar in exchange.

A few guidelines can help everything run smoothly:

Bring clean costumes in good condition. Ask participants to launder costumes when possible and avoid bringing items that are badly stained, torn, or broken.
Label sizes clearly. Have tags, sticky notes, or index cards available for sizes and helpful notes such as “runs small,” “missing hat.”
Include more than complete costumes. Wigs, hats, capes, masks, props, dress-up clothes, dance costumes, and pieces from old DIY costumes can all be useful.
Organize by size. Grouping costumes by approximate size or age makes it much easier for families to browse. Keep accessories in their own area.
Have a plan for leftovers. Decide ahead of time whether unclaimed costumes will go home with their original owners, be saved for another swap, or donated.

And make sure families know that finding a specific costume isn’t guaranteed. Part of the fun is seeing what’s available and letting kids get creative with their choices.

6. Make Swapping Easy

Make it a fun setting for kids, but don’t feel like you have to make it a Halloween party. The goal is to reduce waste – not create more. Borrow tables or clothing racks so participants can see the options. If there’s a way to safely hang a mirror, that can help kids get excited about their “new” costumes.

Miranda Jones organizes her homeschool group’s costume swap every year and shares this advice, “We’ve got a naturally creative group of kids who rarely get their hearts set on being a single character. They’ll combine cowboy boots with an alien head or create a ninja-minion costume. It’s so fun to see what they come up with, and it usually means they don’t go home disappointed.”

7. Try an Online Costume Swap

If you get the vibe that no one has time to attend an in-person event in your area, turn your group into a marketplace-style costume swap. There’s no charge, and people can post costume photos along with sizing info, and other group members claim what they want. Allow participants to interact as they would in a swap or “buy nothing new” group.

A DIY costume often saves a lot of money, but can involve a pretty big time investment as you run from Goodwill to thrift shops looking for all the necessary elements. (Be sure to check out these amazing nature-inspired DIY Halloween costumes.)

Keep the Costume Swap Going

One of the best things about a Halloween costume swap is that it gets easier each year. Save your signs or online group, invite the same families back next fall, and encourage everyone to set aside costumes as their kids outgrow them.