Space Baby Shower DIY Guide — To The Moon & Back Astronaut Theme

Dr. Judith Mendez , MD, Pediatrician, Board-Certified
Space-themed baby shower with galaxy cake, planet balloons, astronaut figurines, and silver star decorations

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A space-themed baby shower is out of this world — galaxy colors, astronaut details, planet balloons, and starry decorations make this the coolest party in the universe. Whether you're going with "To The Moon & Back" or a full astronaut adventure, this theme works beautifully for boys, girls, or gender-neutral showers. It's dramatic, photogenic, and surprisingly easy to DIY. Here's your complete guide to launching the most stellar baby shower ever.

Watch the video inspo!

See our Space Baby Shower Short on YouTube for a quick visual tour of this theme.

Color Palette

Deep navy, galaxy purple, shimmering silver, cosmic blue, moonlight white, and asteroid gold — like staring into a nebula on the clearest night. This palette is bold yet elegant, and every photo looks like it was taken among the stars. Metallic accents tie everything together and make the whole room sparkle.

Deep Navy
Galaxy Purple
Silver Star
Cosmic Blue
Moonlight White
Asteroid Gold

Decorations — How to DIY Them

Space-themed baby shower with galaxy cake, planet balloons, astronaut figurines, and silver star decorations

Planet Balloon Garland

The showstopper of any space baby shower: a balloon garland in navy, purple, silver, and white with oversized "planet" balloons mixed in. Use marble-swirl balloons for a Jupiter effect, solid orange for Mars, and paint rings on a large yellow balloon for Saturn. String silver star confetti balloons throughout. Drape it behind the gift table or dessert station for an instant galaxy wall. Cost: $15-20 for a kit plus 30 minutes of inflating.

Shop Space Balloon Garland Kit →

Star & Moon Garland

Gold and silver star garlands strung across the ceiling or along walls create a canopy of constellations overhead. Mix in crescent moon cutouts and small glittery planets. For extra magic, use metallic string lights woven through the garlands — they catch the light and shimmer like actual stars. DIY with cardstock, a star punch, and metallic thread for under $5. Or grab a pre-made set and hang it in 10 minutes flat.

Shop Star & Moon Garland →

Astronaut Figurine Centerpieces

Small astronaut figurines placed among silver and navy table decorations bring the whole theme to life. Sit them on a bed of metallic confetti stars, surround with battery-operated LED tea lights, and add a small "To the Moon & Back" sign. You can also pose them climbing out of terracotta pots painted silver, or dangling from helium balloons on a fishing line. Guests will be obsessed with these adorable little astronauts.

Shop Astronaut Figurines →

Galaxy Backdrop

A fabric or vinyl galaxy backdrop behind the dessert table transforms any room into deep space. Look for one with nebula swirls, stars, and maybe a few planets. Hang it with command strips or a backdrop stand. Layer silver star garlands in front of it and place a "We're Over the Moon" banner across the top. This becomes the photo wall — every guest will want a picture in front of it. You can also DIY one with a black tablecloth, splattered white paint for stars, and purple/blue spray paint for nebula effects.

Shop Galaxy Backdrop →

Rocket Ship Centerpieces

Cardboard rocket ship centerpieces are easier to make than you'd think. Roll silver cardstock into a cone shape for the nose, wrap a paper towel tube in silver or white paper for the body, add red and orange tissue paper "flames" at the base, and glue on small porthole circles. Stand them on navy plates scattered with star confetti. For a faster version, grab pre-made rocket cutouts and mount them on wooden dowels in a painted mason jar filled with silver beads.

Shop Rocket Ship Centerpieces →

Food & Dessert Table

Space baby shower dessert table with galaxy cake, moon cookies, rocket cake pops, and planet cupcakes
  • Galaxy Cake: A two-tier cake airbrushed or hand-painted in swirling navy, purple, and black with edible gold stars and silver dust. Top with a crescent moon or astronaut topper. The mirror-glaze galaxy cake technique is trending for a reason — it looks impossibly stunning. For an easier version, frost a white cake in dark blue buttercream and swirl in purple and black gel color, then press edible star sprinkles into the sides. Shop Space Cake Topper
  • Moon Cookies: Sugar cookies cut into crescent moon and full moon shapes, frosted in white and silver royal icing with edible gold dust. Add tiny star sprinkles while the icing is wet. Display standing up in a bed of black sugar "space dust" for a dramatic presentation. Use a "Love You to the Moon" tag.
  • Rocket Cake Pops: Cake pops shaped like rocket ships — dip in white candy melts, add a red cone tip and small candy fins. Stand them upright in a styrofoam block covered in navy tissue paper. Kids and adults both go crazy for these. Red, orange, and yellow sprinkles at the base look like flames. Shop Rocket Cake Pop Mold
  • Star-Shaped Sandwiches: Use a star cookie cutter on regular sandwich bread. Fill with cream cheese and cucumber, chicken salad, or PB&J. Arrange on a silver platter in a constellation pattern. Simple, adorable, and every single one gets eaten.
  • Alien Punch / Galaxy Lemonade: Blue Curaçao syrup (non-alcoholic) mixed with lemonade and a splash of grape juice creates a swirling purple-blue galaxy effect. Add dry ice for a smoking cauldron look (handle safely!) or edible glitter for shimmer. Serve in a clear dispenser with a "Rocket Fuel" label. Guests won't stop photographing it.
  • Planet Cupcakes: Vanilla cupcakes with buttercream swirled in different colors — red/orange for Mars, blue/green for Earth, orange/tan for Jupiter, gold for Saturn with a fondant ring. Display on a tiered stand with a "solar system" label card for each planet. Guests pick their favorite planet to eat. Shop Planet Cupcake Toppers
  • Asteroid Popcorn Balls: Mix popcorn with melted marshmallow and shape into rough, uneven balls. Roll in silver and gold edible dust for a rocky asteroid look. Pile them in a crater-shaped bowl (a dark gray bowl works perfectly). Label them "Asteroids" and watch them disappear in minutes. Easy, cheap, and perfectly on-theme.

Complete the table with themed tableware:

Shop Space Galaxy Tableware Set →

Table Setup

Start with a navy or black tablecloth as your base — this is deep space. Layer a silver metallic table runner down the center for a Milky Way effect. Place astronaut figurine centerpieces and rocket ship centerpieces alternating along the runner, surrounded by scattered silver star confetti and battery-operated LED string lights for a starfield glow. Use silver or white plates on navy chargers, with silver napkins rolled and tied with a star-shaped napkin ring or a strip of navy ribbon with a mini star tag.

The key to this theme: make it sparkle. Metallic elements everywhere — silver, gold, iridescent. The contrast between the dark navy/black base and all the shimmering metallic accents is what makes this theme feel like actual outer space. Add a few LED tea lights in silver holders and the room transforms into a galaxy.

Games & Activities

Space Baby Name Match

What you need: Printed cards with space-inspired baby names on one side and their meanings on the other, pens, answer sheets

How to play: Give each guest a list of space-inspired baby names and a separate list of meanings. They match the name to the meaning. Names like Apollo (Greek god of the sun), Luna (the moon), Stella (star), Orion (mythical hunter constellation), Nova (a star showing sudden brightness), Celeste (heavenly), Leo (lion constellation), and Ariel (a moon of Uranus). Most correct matches wins!

Pro tip: Include 2-3 trick names that sound spacey but aren't (like "Cosmo" meaning "order/beauty") to make it challenging. Give the winner a star-shaped candle or galaxy bath bomb.

Pin the Astronaut on the Moon

What you need: A large printed or painted moon poster, paper astronaut cutouts with tape, blindfold

How to play: Hang the moon poster on a wall. Blindfold each guest, spin them once, and let them try to stick their astronaut on the moon's surface. Closest to the center "landing zone" wins! Mark a bullseye target on the moon where the astronaut should land. Hilarity ensues as astronauts end up floating in deep space.

Pro tip: Write each guest's name on their astronaut so you can display the final result — it makes a fun photo and a keepsake for the parents.

Constellation Connect

What you need: Black cardstock with white dots arranged in constellation patterns, white pencils or silver gel pens, constellation name list

How to play: Give each guest a sheet with dots arranged in famous constellation patterns (Big Dipper, Orion, Cassiopeia, Leo, etc.) without the lines drawn. They connect the dots and try to identify each constellation. Most correct identifications wins! This is surprisingly tricky and sparks great conversation.

Pro tip: Include one easy one (Big Dipper) so nobody gets a zero, and one obscure one (Cygnus or Lyra) as a tiebreaker. Provide a "cheat sheet" at the end so everyone learns something.

Don't Say "Baby" — Space Edition

What you need: Glow-in-the-dark star stickers or silver star pins — 1 per guest

How to play: Give each guest a star when they arrive. The rule: you can't say "baby" for the entire party. If someone catches you saying it, they take your star. The guest with the most stars at the end wins! The space twist makes the classic game feel fresh and keeps the star theme going.

Pro tip: Award the winner a space-themed prize like a galaxy bath bomb set or a star projector night light. Watch people hilariously try to say "the little one" and "the new arrival" all party long.

Wishes for Baby — Star Cards

What you need: Star-shaped cardstock in gold or silver, pens, a decorative jar or shadow box

How to play: Each guest writes a wish, hope, or piece of advice for the baby on a star-shaped card. Drop them into a glass jar labeled "Wishes Upon a Star" or a deep shadow box that the parents can hang in the nursery. The baby literally has a jar full of stars with love notes from everyone who came to the shower.

Pro tip: Use gold metallic pens on navy star cards for maximum wow factor. The filled jar with gold stars looks incredible on a nursery shelf and becomes a meaningful keepsake the child can read when they're older.

Favors & Gift Table

  • Galaxy Bath Bombs: Small galaxy-swirl bath bombs in navy, purple, and silver — they look like little planets and dissolve into a swirling galaxy in the tub. Package in a clear bag with a "Thanks for Orbiting with Us" tag. Affordable and everyone actually uses them. Shop Galaxy Bath Bomb Favors
  • Star Projector Night Lights: Mini star projector keychains or small plug-in star night lights. They're affordable in bulk, perfectly on-theme, and guests will actually keep them on their nightstands. Attach a "Thank You for Making This Night Stellar" tag. Shop Star Projector Favors
  • Astronaut Keychains: Small astronaut figurine keychains in silver. Cute, functional, and guests smile every time they grab their keys. Tie with a navy ribbon and a "Houston, We Have a Baby" tag.
  • Moon Dust Sugar Scrubs: Small jars of silver-tinted sugar scrub labeled "Moon Dust." Make them with sugar, coconut oil, and silver mica powder — under $1 each for a favor that looks like it cost $10. Shop Silver Mica Powder for Moon Dust Scrubs
  • Glow-in-the-Dark Stars: A pack of glow-in-the-dark ceiling stars in a small bag with a "You Light Up Our Galaxy" tag. Nostalgic, fun, and costs pennies per favor. Kids and adults both love sticking them on their ceiling at home. Shop Glow-in-the-Dark Star Favors

Complete Supply List

Budget Tip

The space theme looks expensive but is shockingly affordable when you lean into DIY. A navy tablecloth from the dollar store is your base. Splatter white paint on black poster board for a free galaxy backdrop. Print star and moon shapes on gold cardstock and string them yourself for pennies. Aluminum foil wrapped around cardboard tubes makes great rocket ship centerpieces. Use glow-in-the-dark stars from the dollar store as confetti AND favors. The balloon garland kit ($15) is the only real expense — everything else can be done for under $25 total!

The Perfect Shower Gift

Looking for a unique and practical gift for the mom-to-be? The MomEZ Hands-Free Baby Bottle Holder is a game-changer for new parents. It attaches to car seats, swings, strollers, and more — giving parents their hands back during feeding time. Because every new parent deserves a moment to reach for the stars!

Shop MomEZ Bottle Holder →

Love This Theme? Check Out These Too

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Dr. Judith Mendez , MD, Pediatrician, Board-Certified

Dr. Judith Mendez is a board-certified pediatrician with over 15 years of experience caring for newborns, infants, and children. She is passionate about helping new parents navigate the joys and challenges of parenthood with evidence-based guidance.