Spa Birthday Party Ideas: How I Set Up a DIY Spa Day for 10 Nine-Year-Olds in My Friend’s Living Room (Total: $97)

Last October my friend Rachel texted me at 11 PM on a Tuesday. “Zoe wants a spa party. I don’t know what that means. Help.” Zoe was turning 9. Rachel had exactly 18 days and—her words—zero Pinterest energy left after planning a unicorn party the year before that nearly broke her.

I told her I’d handle it. I’d never thrown a spa party either, but I’d helped plan enough kids’ parties at this point that I figured: cucumber water, face masks, nail polish, done. Right?

Mostly right. But there were a few things I got wrong that I wish someone had told me first.

The Guest List Situation

Zoe invited 12 girls. Ten said yes. Rachel’s living room is maybe 14 by 16 feet with a sectional that eats half the space. So we moved the coffee table to the garage and pushed the couch against one wall. That gave us enough floor space for five stations if we kept them tight.

Here’s something I didn’t think about until the morning of: ten 9-year-olds need somewhere to sit while they wait for their turn at each station. We grabbed every throw pillow in the house—Rachel had seven, I brought four from my place—and lined them along the walls. That became the “relaxation lounge.” The girls loved it more than any actual station. They just sat there in their robes pretending to read magazines Rachel pulled from her recycling bin. Real ones. People from 2024. They thought it was hilarious.

What We Actually Set Up (5 Stations)

Station 1: Cucumber Water Bar

This sounds fancier than it is. One pitcher of water with sliced cucumbers. One pitcher with frozen strawberries (they double as ice cubes—learned this from a bridal shower I helped with two years ago). We used Rachel’s everyday glasses but tied a little ribbon around each one with a name tag. That was it. Cost: maybe $4 for the cucumbers and strawberries.

The girls spent a genuinely alarming amount of time at this station. They kept refilling their glasses and walking around holding them with two hands like they were at a resort. One girl—Zoe’s friend Presley—asked if we had “sparkling.” We did not.

Station 2: Face Mask Station

I bought a 12-pack of sheet masks on Amazon for $8.99. Kid-friendly ones, fragrance-free, the brand was some Korean skincare company I can’t pronounce but has 14,000 reviews. Each girl got one mask. They wore them for about six minutes before most of them peeled them off because “it feels slimy.” That’s fine. Six minutes of quiet from ten 9-year-olds is a gift.

We also mixed a DIY face mask at this station: plain yogurt, honey, and a tiny bit of turmeric. Four girls tried it. Three said it smelled weird. One—Zoe—wore it for 20 minutes and declared it “life-changing.” She’s 9.

Station 3: Nail Polish Bar

This is where 70% of the party happened. I brought every nail polish I own. Rachel grabbed hers. Between us we had maybe 30 bottles spanning the full color spectrum plus a glitter topcoat from 2019 that was still somehow usable.

We covered Rachel’s dining table with two layers of plastic tablecloth ($1.25 each from Dollar Tree—buy the thick ones, not the tissue-thin ones that rip when you look at them). Set out the polishes, cotton balls, a bottle of remover, and a stack of paper towels.

The girls paired up and painted each other’s nails. This is where having an even number mattered—we lucked out with 10. If you end up with an odd number, just have one girl go twice or do her own. No drama.

Cost for this station: basically $2.50 for the tablecloths. The polish was already mine.

One spill happened. Purple. On Rachel’s chair pad. We got most of it out with rubbing alcohol but there’s still a faint lavender shadow on it. She says she doesn’t care. I think she cares a little.

Station 4: Crown and Hat Decorating

This might’ve been my favorite station. I ordered GINYOU’s pastel pom pom party hats—the 12-pack in those soft macaron colors. They’re already cute out of the box, but we set them out with rhinestone stickers, adhesive gems, puffy letter stickers, and thin ribbon so the girls could decorate them however they wanted.

Nine out of ten girls wore their decorated hat for the rest of the party. The tenth—a kid named Harper—decided hers was “art, not fashion” and carefully placed it on the mantle. Fair enough.

We also had the mini gold crowns as a backup option. Rachel bought a 6-pack of those for the girls who wanted something more “queen” and less “birthday.” Zoe immediately grabbed a gold crown and wore it the entire time. Birthday girl prerogative.

Total for this station: about $18 for the hats plus $7 for the decorating supplies. The crowns were $9.99. So roughly $35 for the station that produced the most photos.

Station 5: Sugar Scrub DIY

We pre-measured white sugar into small mason jars (I had a box of 12 from a failed jam project—don’t ask). Each girl added coconut oil, a drop of food coloring, and a few drops of vanilla extract. They stirred it up, scrubbed their hands, rinsed in a big plastic bin we set on the floor, and then took their jar home as a party favor.

This is the station I’m most proud of because it solved two problems: activity AND favor. We didn’t have to buy separate goody bags. The scrub jar was the favor. A few parents texted Rachel later saying their daughters actually used it at home, which never happens with party favors. Usually they end up in a drawer.

Cost: sugar ($3), coconut oil ($5—we used maybe a third of a jar), vanilla extract ($0 because Rachel had it), food coloring ($0, also Rachel’s), mason jars ($0, my jam failure). So about $8.

The Robes

OK so this is where I went back and forth. You can buy cheap spa robes for kids on Amazon—they run about $10-15 each, which for 10 kids is $100-150 just for robes. That blows the whole budget on one thing.

What we did instead: white oversized t-shirts. I bought a 12-pack of men’s XL white tees from Walmart for $22. The girls put them on backwards and they hung to their knees like robes. We belted them with ribbon. Was it as Instagram-perfect as actual robes? No. Did the girls care? Also no. They were thrilled. Biscuit—my corgi—tried to steal one off the floor and I caught him mid-drag. Classic Biscuit.

Food

We kept food simple because the stations were the main event:

Fruit skewers (strawberries, grapes, melon) — $12
Mini sandwiches, crusts cut off because apparently that matters — $8 for bread and cream cheese
Cake. Rachel ordered a sheet cake from Costco. $22. “Spa-Vibes” written in purple icing. It was perfect.
Cucumber water from Station 1 did double duty as the drink.

Total food: about $42.

The Timeline That Actually Worked

Party was 2:00 to 4:30 PM. Two and a half hours. Here’s how it shook out:

2:00 — Girls arrive, get their “robe” (t-shirt), immediately start walking around like they own the place
2:15 — Cucumber water bar opens. Girls practice being fancy.
2:30 — Face mask station. Six minutes of bliss, then chaos.
2:45 — Nail polish bar. This ran until about 3:30 because nobody wanted to leave.
3:15 — Crown decorating station opens alongside nails (some girls bounced between both). I’d genuinely tell anyone planning a sleepover party to add a hat decorating station too—it works for every theme.
3:30 — Sugar scrub DIY
3:45 — Cake and singing
4:00 — Free play/relaxation lounge. Girls sit on floor pillows reading 2024 magazines.
4:30 — Parents pick up. Each girl leaves with: decorated hat, sugar scrub jar, nail polish still wet.

That nail polish still wet thing—yeah. We should’ve done nails earlier. Lesson learned.

The Full Budget Breakdown

Cucumber water bar: $4
Sheet masks: $8.99
DIY face mask ingredients: $3
Plastic tablecloths: $2.50
Pastel pom pom party hats: $12.99
Mini gold crowns: $9.99
Hat decorating supplies: $7
Sugar scrub ingredients: $8
T-shirt “robes”: $22
Fruit skewers: $12
Mini sandwiches: $8
Sheet cake: $22

Total: $120.47

Wait—I said $97 in the title. Here’s why: Rachel already had the coconut oil, food coloring, vanilla extract, and mason jars. I already had the nail polish and cotton balls. If you’re buying everything from scratch, plan for about $120. If you’ve got a decent kitchen and a nail polish collection, you’re under $100 easy.

Compare that to booking a kids’ spa party venue. I looked into one near Rachel’s house in Maplewood, NJ—$35 per kid, minimum 8 kids. That’s $280 before tip. And they get 90 minutes. We did 2.5 hours for a third of the price.

Three Things I’d Change

Do nails first. I already mentioned this but it bears repeating. Wet nails plus face masks plus sugar scrub equals smudges. Every single girl had to redo at least one nail.

More towels. We had four hand towels. We needed twelve. The sugar scrub station was a wet mess by the third girl. I ended up using paper towels which worked but felt less “spa.”

Background music from the start. We forgot to put on the playlist until 45 minutes in. The second the Olivia Rodrigo spa-remix playlist hit, the whole vibe shifted. Music matters more than decorations. I’ll die on that hill.

What I’d Skip If Budget’s Tight

The mini gold crowns. They’re beautiful—Zoe wore hers the rest of the weekend—but the pastel pom pom hats already covered the “wearable headpiece” need. If you’re choosing one or the other, the pom pom hats win because the decorating activity is the real value.

Sheet masks. Half the girls barely used them. DIY yogurt masks were free and got the same reaction. Keep the $9.

FAQ

What age is a spa party good for?

7 to 11 is the sweet spot. Under 7 and the nail polish situation gets dicey—they don’t have the patience for drying time. Over 11 and they might want actual spa products, which gets expensive fast. Zoe’s 9-year-old crew was perfect for DIY everything.

How long should a spa birthday party last?

Two to three hours. We did 2.5 and it felt right. Under two hours and you’re rushing through stations. Over three and the “spa” vibe turns into “kids bouncing off walls” energy. The relaxation lounge helps fill any dead time without you having to plan another activity.

Can boys come to a spa party?

Absolutely. We didn’t have any boys at Zoe’s party, but I’ve seen spa parties with mixed groups work great. Boys love the sugar scrub station especially—it’s basically a science experiment with a fancy name. And the hat decorating station is gender-neutral by design.

Do I need to buy actual robes?

No. XL white t-shirts worn backwards with ribbon belts work perfectly and cost a fraction. The girls didn’t know or care that they weren’t “real” robes. Save that $100+ for literally anything else.

What about allergies with DIY face masks and sugar scrubs?

Ask parents ahead of time. Our yogurt mask has dairy. The sugar scrub has coconut. If someone has allergies, just skip that station for them—there are four others. We had one girl who was allergic to coconut so she skipped the scrub and did an extra round at the nail station instead. No tears, no drama.

Rachel texted me two days after the party. “Three moms asked me to plan their kids’ spa parties now.” She’s not going to. But the fact that they asked means we got something right. Honestly, the thing that made it work wasn’t any single station—it was that the whole setup gave 10 nine-year-olds permission to just chill for two hours. That’s rare at a kids’ party. Usually it’s all go-go-go. This one had breathing room. Even Biscuit fell asleep on one of the floor pillows by 3 PM.

If you’re thinking about throwing one, just start with the nail station and the hat station. Those two alone could carry a whole party. Everything else is bonus. And do the tea party thing where you serve fancy water in regular glasses with ribbons—costs nothing and the kids eat it up.

Don’t Forget the Family Dog

Our last spa party was also a birthday celebration for Biscuit, our corgi. She wore a dog birthday hat the whole time—the EarFree™ Fit design sits above the ears so she didn’t try to shake it off once during the 40-minute spa session. If you’re doing a spa party with pets around, check out our dog birthday party supplies too.