Trunk-or-treating has quickly become a popular alternative to traditional door-to-door trick-or-treating, and a big part of the fun is coming up with creative Halloween car decorations. Here we’ll delve into all things trunk-or-treat, exploring what the event entails and exploring a variety of car decoration themes to inspire your creativity. We’ll also provide essential supplies and setup tips to make your event a success.
Disclaimer: Decoration of SIXT rental vehicles is strictly prohibited. The examples provided are for creative inspiration only and are intended exclusively for use with personal vehicles.

What is “Trunk-or-Treat”
Trunk-or-treat is a family-friendly Halloween event where people gather in a designated parking lot (such as a school, church, or community center), decorate their vehicles, and hand out candy to “trunk-or-treaters”. Instead of going door-to-door, kids go from car to car for treats, games, and other Halloween activities.
Often organized by churches, schools, and community centers, trunk-or-treating events are presented as a safer alternative to door-to-door trick-or-treating. They provide a safe and controlled environment for kids to celebrate Halloween, eliminating the risks associated with traditional trick-or-treating.
Creative Trunk or Treat Car Decoration Themes
From classic Halloween themes like haunted graveyards and pumpkin patches to spooky movie-themed car decorations, here are some ideas for how to decorate your car for Halloween:
Haunted Graveyard
Transform your trunk into a haunted cemetery. Use tombstones, cobwebs, and skeleton props to set the scene. Add a fog machine and string up some flickering LED lights for an extra spooky touch. For truck Halloween decorations, you have more space, so consider a full graveyard setup.
Pumpkin Patch
If you want something festive but not too scary, go for a cheerful pumpkin patch theme. Fill your trunk with hay bales, pumpkins of all sizes, fall leaves, and even a scarecrow. This theme is perfect for a family-friendly trunk-or-treat event and works great if you want to avoid gore.
Day of the Dead
Celebrate the vibrant Mexican tradition with colourful sugar skulls, marigolds, and festive Día de los Muertos-themed pumpkins! Use bright colours like pink, orange, and turquoise to make your car stand out.
Movie Themes
Whether you choose a spooky classic like Hocus Pocus, Ghostbusters, or a family favourite like The Nightmare Before Christmas, a movie-themed setup is sure to make your trunk the talk of the parking lot! This theme is especially fun if you and your family dress as characters to match your trunk design.
Monster Mouth
Turn your trunk into the mouth of a giant monster! Use large cardboard teeth, googly eyes on the top, and a red backdrop to mimic the inside of a mouth. Add creepy sound effects for extra fun. This theme is creative, inexpensive, and perfect for any size vehicle.
Supplies for Halloween Car Decorations
Now that you’ve picked your theme, it’s time to gather supplies. Here’s a checklist of the supplies you’ll need to get started:
- Backdrop – tablecloths, sheets, or large banners to cover the inside of your trunk.
- Props – pumpkins, skeletons, tombstones, fake hay, or themed cutouts.
- Lighting – LED string lights, battery-operated candles, or lanterns add a spooky touch.
- Adhesive – velcro strips, zip ties, and removable hooks.
- Candy bowls – containers or themed bowls (like a witch’s cauldron) for candy.
Setup tips for Halloween Car Decorations
Creating an amazing trunk-or-treat display is all about planning and safety. Here’s how to get it right:
Plan Your Layout
Before you start decorating, it’s essential to plan your layout to ensure everything fits securely and looks cohesive. Start by mapping out your design on paper or digitally. Decide where your backdrop will go, where large props will sit, and how smaller elements will fill in the gaps. If you’re decorating a truck, consider how to utilise the truck bed by stacking props creatively.
Secure everything
You want your decorations to stay put without damaging your car. Avoid adhesives that can harm paint or interior surfaces and instead opt for painter’s tape for lightweight items, velcro strips for backdrops or hanging items, zip ties for heavier props, or command hooks for hanging string lights.
Think about safety
Safety should always come first. Your decorations should impress, not create hazards. Don’t block mirrors, windows or taillights when driving. Keep decorations away from the exhaust and any heat sources. Secure cords with tape and keep walkways clear for kids. Battery-operated LED lights and flameless candles are safer alternatives to real flames or wired lights.
Add sound effects
Sound effects can take your Halloween car decorations from good to unforgettable. A portable Bluetooth speaker playing eerie sounds or a spooky playlist adds atmosphere. If you’re doing a movie theme, consider playing the film’s soundtrack in the background. Keep the volume low and make sure it isn’t overwhelming, especially if kids will be up close.
Consider weather conditions
If your trunk-or-treat event is outdoors, wind and rain can quickly ruin a great display. Opt for materials and decorations that are weather-resistant or easily secured to your vehicle. Consider bringing plastic sheets to protect your display from rain and use weights or fastenings to keep lightweight decorations from blowing away.
Decorating your car for trunk-or-treat is a great way to bring the community together and celebrate Halloween in a creative, family-friendly way. Whether you opt for a haunted graveyard or a movie theme, these ideas for Halloween car decorations are sure to make your vehicle stand out. Just a reminder — SIXT rental vehicles are not intended to be decorated. The ideas shared here are for inspiration only, should you wish to decorate your own personal vehicle. Decorating a rental car may result in cleaning fees, repair charges, or other penalties under the rental agreement, for which the renter is solely responsible. SIXT does not accept liability for any damages arising from unauthorized decorations.