Everything You Need to Plan a Galaxy-Themed Birthday Party That’s Out of This World

by Melissa Willets

Everything You Need to Plan a Galaxy-Themed Birthday Party That’s Out of This World
Shop Story

If you’re planning an out of this world galaxy-themed birthday party for your cosmically cute little one, you have come to the right planet, er, place. The galaxy theme is as hot as the sun and there are enough party products to fill the solar system abound, from astronaut and spaceship cupcake toppers to whirling planet decorations. To help you streamline your party planning process, we rounded up the top galaxy-themed supplies this side of Mars. All you have to do to throw a party your future space explorer won’t soon forget is read on and explore our picks. 


Perhaps your son is obsessed with “Star Wars,” and we found the perfect attire for him to rock at his upcoming party. If your daughter dreams of walking on the moon, she’ll squeal with delight as her friends whack a spaceship piñata and compete for the most candy. Of course, it may feel overwhelming as you mentally catalog everything you’ll need to host a super special, galaxy-themed birthday party. Start by making a list of the mini martians who’ll attend and then check out the cute invitations we scoped out just for you. From there, review the decorations and paper products party planners, a.k.a. parents, recommend. 


Finally, consider details like the birthday child’s outfit and a perfect gift to give him or her at the galaxy-themed party. Then, get ready to make memories as you watch the star of the day take in the fun and attention with all his or her best buds in attendance.


1 of 10 Image Credits: Amazon

Best Galaxy-Themed Invitations

Blast Off Invitations With Envelopes and Stickers


Customers give these spaceship birthday party invitations five stars and rave about the quality for the price. The front of the colorful card stock features all the necessary details, while the back is sprinkled with stars.

25 pieces
5 x 7 inches
Envelopes and seal stickers included

2 of 10 Image Credits: Amazon

Best Galaxy-Themed Cupcake Toppers

Astronaut, Planet and Spaceship Shapes


Mini mouths will water when you pop fun and on-theme cupcake toppers on purple or teal frosted cupcakes. Rockets, planets and glittering stars are among the cute shapes in this highly rated set that customers say is sturdy and features a good assortment of colorful options.

12 toppers
4-inches tall

3 of 10 Image Credits: Amazon

Best Galaxy-Themed Paper Products

81-Piece Party Supply Kit


One click and you'll have all you need to serve hungry space explorers at the party. Purchasers like the vibrant colors of the purple tablecloth and galaxy-inspired plates, cups and napkins and say the kit was on point for a kids birthday party.

Set of 8 dinner plates 9-inches
Dessert plates 7-inches
9-ounce cups
16 party and 16 beverage napkins
Purple tablecloth 54 x 108 inches

4 of 10 Image Credits: Nordstrom

Best Galaxy-Themed Party Dress

Popatu Metallic Moon Star Tulle Dress


Search the galaxy and you won’t stumble upon a more perfect party dress than this shimmering frock emblazoned with stars and moons. Your birthday girl will adore the oversized star waist detailing and how the dress twirls to take her mind off waiting for her guests to arrive.

Sizes 2T - 8
Cotton lined
Flutter sleeves

5 of 10 Image Credits: Nordstrom

Best Galaxy-Themed Boys Outfit

Star Wars Chewbacca 2-in-1 Stuffed Animal and Hoodie


Any birthday boy would be pumped by this plush Chewbacca that converts into a hoodie he can wear for his big celebration. This super cool, two-in-one stuffed animal and outfit also makes an intergalactically awesome gift.

Sizes 2T - 8
Other characters available

6 of 10 Image Credits: Walmart

Best Galaxy-Themed DIY Party Idea

Outer Space Rocket Ship Water Bottle Labels


Details make all the difference when you plan a themed birthday party. These “blast off” water bottle labels add a cute finishing touch to a drink option for party goers.

20 pieces
8.5 x 2 inches

7 of 10 Image Credits: Amazon

Best Galaxy-Themed Party Favor

Spaceship Cup With Straw


Send kiddos home with a spaceship cup they can slurp from and remember all the fun they had at the galaxy-themed party. Purchasers say the idea worked well for favors at their parties and little sippers loved ‘em!

16 pieces
16 ounces

8 of 10 Image Credits: Amazon

Best Galaxy-Themed Party Game

Spaceship Piñata Kit


The sugar-laden space cadets in attendance at the galaxy-themed party will need to get their energy out, and this spaceship piñata ought to do the trick. Give each child a galaxy-themed favor bag and a turn with the bat, and soon the ground will be covered with candy. Oops, guess that means more sugar!

Includes 15-1/2 x 22 inch piñata, blindfold, 4 lbs candy and stick

9 of 10 Image Credits: Nordstrom

Best Galaxy-Themed Birthday Gift

Lego Space Rocket Launch Set


This NASA-inspired rocket launch set will win big with any space-loving birthday child. Plus, the idea offers parents a fun way to connect with their kiddo and take on a family project to build the space module, monorail and rocket.

Ages 7+
837 pieces

10 of 10 Image Credits: Amazon

Best Galaxy-Themed Party Decorations

Solar System Whirls


Attach these whirling planet decorations to a hanging chandelier or the ceiling and watch kids’ delight. Parents rave about the quality and educational value of the decor as each planet’s name is printed on one side.

10 pieces
3 ft 4 inches