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How to Host a UFO-Themed Halloween Party

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Find ideas for hosting a space-alien-themed party for kids or adults. We used this theme for Halloween, but you can throw this cosmic party for any occasion and any time of the year.

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Intergalactic Entertaining

This galaxy-inspired tablescape is the perfect setting for a UFO party that’s kid-centric but still plenty of fun for adults. With a starry tablecloth, alien-eyes sunglasses and even DIY cow abductions (yes, really!), your guests will feel like they've landed on another planet. Shiny disco-ball drink cups add a futuristic vibe, while glow-in-the-dark stars scattered across the table bring the night sky indoors. Don’t forget the UFO-themed place cards and alien headbands at each seat — everyone gets to unleash their inner extraterrestrial. With inflatable alien "guests" and cosmic snacks like Martian Crunch, this party will feel like an intergalactic adventure from start to finish.

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Hello Earthlings

Welcome your party guests with a cosmic 'GREETINGS' sign. Using a piece of 30x7-inch foam-core board from the craft store, simply cover it in silver wrapping paper and stick-on green glitter letters for that perfect sci-fi touch. Hang this message of intergalactic goodwill above your dining table or use the sign as a photo booth backdrop by hanging it over shimmering sequin curtains in galactic hues.

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Starry Place Setting

Dress up each place setting with a black plate topped with a paper silver star decoration from the dollar store. Add a UFO place card holder and some alien party favors to bring the theme to life. And for drinks? Shiny disco-ball cups fit the futuristic look — perfect for sipping while channeling your inner extraterrestrial.

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Glowing Table Scatter

Let your tablescape shine — literally! Add self-adhesive glow-in-the-dark wall and ceiling decals to your table. Stars, planets, UFOs and aliens are the perfect replacement for confetti scattered on your table. For a magical glowing effect, dim the lights and watch the decorations come alive. Just make sure to charge them up in the sunlight beforehand for maximum glow.

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Instant Alien

No costume? No problem! These alien sunglasses are all it takes to turn partygoers into space invaders. Place a pair at each setting for a quick and easy transformation into a visitor from another planet. It’s the easiest (and most stylish) way to fit right in at your UFO party.

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Alien Head Gear

Why stop at sunglasses when you can rock some futuristic antennae? These deely boppers are the perfect addition to any alien disguise. Place one at each setting so guests can dress up in a flash or wear them yourself to get into character.

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UFO Place Card Holders

Create these UFO-themed place card holders by using cute flying saucer toys. Just attach printed place cards to the tops with a dot of metallic glitter glue, and voilà — you’ve got personalized UFOs guiding each guest to their seat. It’s an easy, fun way to add some flair to the table while keeping the theme on point.

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Slime Time Party Favor

Open up those UFO place card holders to reveal a surprise — mini alien toys swimming in sensory slime. These slimy little favors are perfect for taking home so the fun doesn’t stop when the party ends. It’s out-of-this-world entertainment for guests to enjoy long after the UFOs fly away.

DIY Your Own Slime

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Inflatable Alien Guests

Don’t be alarmed — these inflatable aliens are here to party. Place a few of these serious-looking space visitors at the table to keep the mood light and fun. Guests can snap selfies or take their alien pals home as party favors. They’re inexpensive and come in various colors, so you can create an entire intergalactic squad.

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Cow Abduction Centerpiece

The showstopper of the table is this laugh-out-loud DIY cow abduction centerpiece. With just a doll’s umbrella, some fairy lights, toy cows and a patch of AstroTurf, you can create a UFO abduction scene that's sure to steal the spotlight.

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Martian Crunch

Popcorn gets an extraterrestrial twist with this easy popcorn mix. Drizzle melted green candy coating over popped popcorn and toss in green and purple candies, along with silver star sprinkles. It's a delicious treat. Plus, it’s super easy to whip up for any size gathering. Use our Halloween Sweet-and-Salty Popcorn Mix Recipe as a guide, and add your own candies and sprinkles in galaxy hues.

get the recipe

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Cosmic Popcorn Boxes

Want to send your guests home with more than just memories? Box up some of your cosmic popcorn mix in cute cube-shaped treat boxes. These are perfect as both table decor and take-home goodies. Look for boxes with windows so your Martian Crunch can shine through.