Posted by Ally Patterson
Trunk or treat has become one of the most popular ways for schools, churches, and neighborhoods to celebrate Halloween. Cars park in a lot, trunks open up, and kids walk from car to car collecting candy in a space that's easier to supervise than a neighborhood street.
Whether you're decorating one trunk or organizing the whole event, this guide covers theme ideas, games, and a simple plan for putting it all together.
A trunk or treat is a Halloween event where cars gather in a parking lot or open field, and adults decorate their open trunks with candy and decorations for kids to visit. Instead of walking door to door, kids move from car to car in one contained space. Schools, churches, and neighborhood groups often host trunk or treats as a safer, more social alternative to traditional trick or treating, especially for younger kids or families who live in areas without many houses nearby.
Most trunk or treats run for one to two hours in the early evening. Organizers usually pick a theme-friendly setup, a decorated car, and a bowl of candy, though many groups add games, music, and costume contests to make it a full event rather than just a candy stop.
The best trunk or treat themes are easy to pull off with things you likely already have, plus a few inexpensive extras from a party store. Here are a few reliable starting points.
Under the Sea
Blue streamers or fabric across the trunk opening, inflatable sea creatures, and fishing net draped over the bumper. Hand out gummy fish or Swedish Fish.
Pumpkin Patch
Real or plastic pumpkins of different sizes, hay bales if you can get them, and orange and green lights. Candy corn fits the theme perfectly.
Outer Space
Black fabric backdrop with glow-in-the-dark star stickers, a cardboard rocket ship, and astronaut costumes for whoever's handing out candy. Try Milky Way or Starburst.
Storybook Characters
Pick a favorite book or fairy tale and build the trunk around it with a printed backdrop and costumes. Works well for teacher or classroom-organized trunks.
Retro Diner
Checkered tablecloth, string lights, and a handwritten chalkboard menu. Hand out candy in small paper trays like a mini order.
Monster Mash
Balloons, streamers, and cutout monster shapes taped around the trunk. Play music and let whoever's staffing the trunk lean into a fun costume.
A few things make any theme look more finished without much extra effort:
Genius Tip
Assign themes ahead of time on a sign up sheet so you don't end up with five pumpkin patches and no space theme. It also helps you spot gaps and fill them before the event.
Candy is the main draw, but a few simple games or activities give kids a reason to linger and give trunk decorators something to do beyond handing out treats.
Keep games simple enough to run without much supervision. Most trunk or treats move quickly, so games that take 30 seconds or less per kid work best.
A trunk or treat has more moving parts than a single decorated car. You need a location, enough trunks to make it feel full, candy, and a way to keep everyone informed. Here's a simple way to break down the planning.
3 to 4 weeks before
1 to 2 weeks before
Day of the event
A few safety basics are worth building in from the start.
Keep decorators and volunteers organized
Assigning themes and time slots ahead of time avoids last-minute confusion
A sign up sheet lets you list open trunk spots, assign themes so they don't repeat, and send automatic reminders so no one forgets which day they signed up for.
How do I decorate my trunk for trunk or treat?
Start with a theme, then cover the inside of your trunk with fabric or a tablecloth as a backdrop. Add lights, a few themed props, and a sign with your theme name. Battery-powered string lights make almost any setup look more finished after dark.
What games can I play at a trunk or treat?
Quick, low-supervision games work best since most events move fast. Bean bag toss, ring toss, and a candy-guessing jar are easy to set up and keep kids moving through the event without long waits at any one trunk.
How far in advance should I start planning a trunk or treat?
Most organizers start three to four weeks out to confirm a location, recruit trunk decorators, and assign themes. That leaves time to send reminders and finalize details like candy amounts and parking flow closer to the event.
Do I need to register decorators for a trunk or treat?
It's not required, but having a list of who's decorating helps you avoid repeated themes and confirm how much candy to expect overall. A sign up sheet also makes it easy to send reminders so no one forgets their assigned date or time.
How much candy do I need for a trunk or treat?
It depends on expected attendance, but a good rule of thumb is planning for 100 to 150 kids per trunk if you don't have a firm headcount. Bringing extra is safer than running out partway through the event.
Using SignUpGenius we can also keep a tab of how many volunteers we had participate in TEACH modules every year, and we can even organize the data by medical center (location) or date. Also, since we have many events at each location every year, we can duplicate an old sign up and simply adjust the date instead of creating another sign up from scratch!
Michael Shavolian, Albert Einstein College of Medicine
