Your baby’s first birthday is a once-in-a-lifetime celebration — and at Parties That Twinkle, we’re here to make it magical, memorable, and picture-perfect. Whether you’re planning something sweet, bubbly, wild, or space-themed, we have handcrafted decor to bring your vision to life. In this post, we’re sharing 10 of our favorite first birthday party themes using real products from our shop. Each one is designed to sparkle with style and heart — just like your little one.
*Each theme comes with a photo and a link to one of our Pinterest boards, which can be used to match your party’s colors and style. Click through to find the perfect decorations to make your little one’s celebration truly special! 🎉✨
One Happy Dude
Throw the chillest party on the block with our One Happy Dude theme. Featuring bright yellows, trendy checkered patterns, and a dash of retro flair, this theme is perfect for your effortlessly happy baby boy. Our matching cupcake toppers and layered cake topper will tie the entire look together. Add a fun backdrop, and you’ve got a party that’s both stylish and Insta-worthy.
Link: ONE Happy Dude , Etsy
One Sweet Peach
Soft, sweet, and a little southern, this peach-themed party is everything! Our One Sweet Peach bundle includes a peach-toned cake topper, highchair banner, wall banner, cupcake toppers, and a matching romper to pull together the perfect summer vibe. Add in floral accents and your little one in a peachy outfit, and you’ve got a fresh and adorable setup.
Link: ONE Sweet Peach , Etsy
Candy ONEderland
Colorful, fun, and full of sugar-inspired cuteness, Candy ONEderland is a dream theme for sweet tooths! Think lollipops, sprinkles, and pastel confetti paired with a bright and festive cake topper. we can help bring this whimsical candyland to life — no sugar rush needed.
Link: Candy ONEderland , Etsy
Lemonade Sweet One
Fresh-squeezed and full of charm, the Lemonade Sweet One theme brings a little zest to your celebration. Featuring citrus-toned colors and lemon-inspired decorations, this setup is ideal for spring or summer birthdays. Our cake topper offers bright pops of yellow, accented with sweet pinks — the perfect blend of sweet and tangy.
Link: Lemonade Sweet ONE , Etsy
Berry First Birthday
Celebrate your little cutie with a Berry First Birthday theme! With strawberry-inspired decor, this look is just the right mix of rustic and sweet. We offer cake toppers, banners, cupcake toppers and a matching romper and tutu that pair perfectly with gingham or farm-chic details. Add fresh berries to your dessert table and your celebration will be berry special.
Link: Berry First Birthday , Etsy
Wild One
Let your little one’s wild spirit shine with our Wild One theme — perfect for animal lovers and adventure seekers! Featuring earthy tones, animal silhouettes, and tribal patterns, our cake topper can turn your space into a mini jungle. Add plush animal toys and natural decor for an untamed first birthday bash.
Cookies Sweet One
Your cookie monster deserves the sweetest celebration! Our Cookies Sweet One bundle includes a custom cookie cake topper, coordinating banners, and themed cupcake toppers — perfect for a cookie smash cake and milk-and-cookie bar. This cozy and nostalgic theme is a favorite among parents and bakers alike.
Link: Cookie Sweet ONE , Etsy
The Big ONE
Surf’s up for your little dude! The Big ONE is a surf-themed birthday bundle that brings all the beachy vibes. With wave details, surfboard accents, and ocean-inspired colors, this set includes a cake topper, highchair banner, and matching outfit perfect for a sunny, seaside celebration. Add in some tropical snacks, a kiddie pool, and your baby in a beachy romper, and you’ve got a surf’s-up party they’ll never forget.
Link: The Big ONE , Etsy
Bubbly One
Who says bubbles are just for bath time? Our Bubbly One theme is all about fun, softness, and joy. Think pastel colors, circles, and lots of sparkle. This customer favorite features a dreamy cake topper, matching centerpiece, and banner that floats right into your heart. Add bubble wands or a bubble machine for interactive fun.
Link: Bubbly ONE , Etsy
Space: First Trip Around the Sun
Your baby’s first orbit around the sun deserves a galactic celebration. Our Space birthday theme includes rocket ships, stars, and planet-inspired pieces — perfect for your little astronaut. With a custom cake topper, highchair banner, and starry centerpieces, your party will be out of this world.
Link: First Trip Around the Sun , Etsy
Your baby’s first birthday is more than a party — it’s a celebration of one magical year of memories, milestones, and love. Whether you’re going sweet with peaches and berries, bold with surfboards and racecars, or whimsical with bubbles and stars, Parties That Twinkle has everything you need to bring your dream theme to life.
Every piece in our shop is handcrafted with care to make your celebration not just beautiful, but meaningful. From cake toppers and banners to centerpieces and matching outfits, we’re here to help you celebrate your little one’s big day — one sparkle at a time.
If you’re looking for unique decorations to match your theme, check out our collection of custom banners, cake toppers, and centerpieces to add the perfect finishing touch.
Here’s to stress-free, joy-filled celebrations!
Looking for custom decorations to bring these themes to life? At Parties That Twinkle, we specialize in personalized cake toppers, banners, and centerpieces to match your chosen theme. Let us help you make your celebration unforgettable!
Kristen M. Porter, Owner of Parties That Twinkle
Kristen is the creative mind behind Parties That Twinkle, a custom party decor shop that specializes in personalized decorations for all of life’s celebrations. Whether you’re planning a birthday, baby shower, or special event, Kristen is dedicated to helping you make your party truly unique.
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