Hello Kitty Birthday Party Ideas: How We Threw a Real Sanrio Design Party for 11 Seven-Year-Olds ($82 Total)

My daughter loves Hello Kitty the way some kids love dinosaurs — not as a phase, but as a whole personality.

She’d been asking for a Sanrio party for eight months. Not just Hello Kitty. Sanrio. She had opinions about Cinnamoroll versus My Melody. She had an entire notebook where she ranked her favorites by “vibe.” She is seven years old.

I ended up with 11 kids, $82, and a party that didn’t involve a single licensed tablecloth or $24 banner from Party City. Here’s what actually worked.

The Character Design Hat Station — what everyone still talks about ($13)

I bought a pack of 10 CPSIA-certified cone hats from GINYOU (plain white, which is important) and set up a table with fine-tip markers, metallic pens, and two printed reference sheets: 12 Sanrio characters with their color palettes, and some basic tips on drawing rounded ears and bow shapes.

The instruction was simple: design your own Sanrio character. Not copy Hello Kitty. Make your own.

What happened: 45 minutes of near-silence. Eleven seven-year-olds, completely absorbed. One girl created a character she named “Starberry” — white cat, strawberry bow, tiny wings because “she escaped from a farm and now she’s free.” Another kid made a character that was explicitly “Cinnamoroll but grumpy.” She gave him little angry eyebrows and wrote “Do Not Hug” on his side.

The hats became their characters for the entire afternoon. Kids were introducing themselves by their character’s name. “Hi, I’m Starberry.” “I’m Midnight Bunny, I work at a bakery.”

Cost: $12 for the hat pack plus $1.75 for extra metallic pens. My daughter still has hers on her bookshelf.

If you want the same hats, they’re the GINYOU ones — CPSIA-certified, plain white cone hats. The white base matters — pink or patterned hats don’t work for this activity because the markers don’t show up.

The Sanrio Café Setup — better than a catered table ($18)

I didn’t hire a caterer. I set up a “café” with pink lemonade in a glass dispenser, strawberry shortcake bites cut small, and little name cards I printed that said “Café de Fleur.” Each snack had a character name: “Cinnamoroll Clouds” (mini marshmallows), “Pompompurin Pudding” (store-bought vanilla cups), “My Melody Berry Mix” (strawberries and blueberries).

Total cost: $18 for everything. It looked like a lot of effort. It was maybe 30 minutes of setup.

The name cards made the difference. Same dollar-store marshmallows, but “Cinnamoroll Clouds” hits different when you’re seven and wearing a handmade Sanrio hat.

The Friendship Letter Game — zero cost, weirdly emotional ($0)

Sanrio’s whole thing is friendship. So I stole the concept.

Each kid got a small card with their character’s name on it (the one they designed). They had to write a one-sentence friendship message from their character to someone else’s character. Totally anonymous. Then we shuffled and read them out loud.

“Midnight Bunny, I know you only work nights but I hope we can be friends during sunrise. — Starberry.”

The room. I cannot describe it. Several parents were in the back. There were tears. From adults. Over fictional cat people.

Cost: zero. I had index cards. I cut them smaller.

The Sanrio Bingo — works better than relay races for this age ($3)

I printed 12 different Bingo cards with Sanrio character faces in each square. Called characters by their “feelings” instead of names: “the dog who loves pudding,” “the twin stars who live on a planet,” “the little devil with the big hat.” Kids had to figure out who I meant.

The ones who knew Sanrio well had an advantage. The ones who didn’t were learning as they played. No one felt excluded because even the dedicated fans had to think.

Winner got to pick from a prize bag. I had $1 rainbow markers, Sanrio sticker sheets from the Target dollar section, and $2 bubble wands. Nobody complained about the prizes.

What didn’t work

I tried to do a “photo booth” corner with a pink backdrop and Sanrio ears headbands I found on Amazon. Fourteen dollars for six headbands. Two of the headbands snapped within the first ten minutes. Two kids cried. I took the backdrop down and just let people use the craft table corner instead, which looked better anyway.

Also: the official Hello Kitty party pack from Party City. I almost bought it — $34 for plates, napkins, a banner, and 8 cone hats with Hello Kitty printed on them. I didn’t, because the printed hats couldn’t be drawn on. Correct decision. The plain hats I got were the best part of the party.

Full budget breakdown

Hats + markers: $13
Café snacks + lemonade: $18
Bingo cards (printed at home): $3 in ink
Prize bag: $12
Pink and white balloons (target, $6/bag × 3): $18
Strawberry cake from Costco: $18

Total: $82 for 11 kids.

Party City’s Hello Kitty kit alone was $34 for 8 kids. I did 11 kids for $82 and the main activity cost $13.

The thing I’d do differently

I’d start the hat station earlier — I waited until after cake, and by then two kids were flagging. The best version of this party would open with the hat station as soon as guests arrived, before anyone’s energy drops.

Also I’d add one more cup of metallic gold marker. We ran out of gold halfway through and three kids had to wait. Minor, but memorable.

The friendship letter game I’d keep exactly as-is. Don’t change it. Don’t add rules. Let it run until the cards are done.

Starberry lives on my daughter’s bookshelf. Midnight Bunny is still on the fridge. That’s the whole point.