How to Throw a Space-Themed Birthday Party for Kids

The one thing to buy if you're only buying one thing — this single box covers plates, cups, napkins, a tablecloth, a banner, hanging swirls, and cupcake toppers, so the whole table matches without hunting down five separate items. Good starting point to build the rest of this guide around.

Turns the front door into a rocket kids walk through — genuinely photo-worthy for very little effort. Setup is string through pre-punched holes plus the included adhesive dots, so it's a five-minute job, not a project.

Enough here to actually fill a room, not just decorate one corner — 60 balloons across black, blue, and silver, with a star-print mix. Works air-filled and taped along a wall or helium-filled for a floating cluster; either way, 60 covers an arch with spares left over.

The centerpiece, not a background piece — all 8 planets plus the sun, hung from the ceiling at different heights so the room reads as an actual solar system instead of just space-colored decor. Comes with learning cards too, if you want it to double as something educational before it becomes a photo backdrop.

A cheap way to add a floor-standing character to the room without committing to a full life-size prop — good near the entrance or next to the gift table. At under $5 it's an easy add rather than a real decision.

Turns off the overhead lights and does the rest of the decorating for you — it projects moving aurora and stars across the whole ceiling and walls, in 4 colors with 16 effects to cycle through. Doubles as a Bluetooth speaker too, so it's worth setting up early and leaving on through cake and gift-opening rather than packing it away after the room reveal.

The easiest activity to run — zero setup beyond hanging it, and kids take turns tossing the included bean bags at the numbered holes with no rules to explain beyond "highest score wins." Good for the arrival window, while guests are still trickling in and you don't have a full group yet.

The activity that doubles as the takeaway — each kid paints their own wooden rocket, planet, or astronaut keychain, and it becomes their party favor instead of a separate thing to buy. Budget about 20 minutes for the paint to dry enough to handle, so run this early rather than right before pickup.

One big activity instead of ten small ones — at 31.5 x 72 inches, several kids can crowd around and color different planets at once instead of waiting their turn for a single sheet. Rolls up afterward as a keepsake, or just becomes a mid-party tablecloth swap.

A real target game without real darts — the soft sticky balls stick to the felt board instead of anything sharp, so the group can play with minimal supervision for a few minutes. Good as a wind-down activity right before cake, since it naturally forms a line instead of a scrum.

Covers a dozen guests in one box — bags, stress balls, mini spaceship toys, erasers, bracelets, keychains, and glow-in-the-dark tattoos, all space-themed and already sorted into styles. Works out to a little over $2 per kid for a goodie bag that doesn't look thrown together at the last minute.

Doubles as a photo-booth prop during the party and a take-home favor after — 16 different cartoon designs, so no two kids end up with the same pair. Worth noting: they're paper, not plastic, so treat them as a fun add-on rather than something built to survive a whole afternoon of rough play.