Looking to make a SpongeBob fan’s birthday extra special?
You’re in the right place! From classic SpongeBob smiles to elaborate Bikini Bottom scenes, these 16 cake ideas are packed with fun and creativity.
Whether it’s a simple design with SpongeBob’s cheerful face or a multi-tiered cake featuring all his friends, there’s something here for every level of SpongeBob love.
Get ready to dive into some seriously awesome cake inspiration that’s sure to bring big smiles and maybe a few giggles too!
1. Underwater Adventure with SpongeBob, Patrick, and Squidward
Photo Credit: Pinterest
Look at this SpongeBob cake—it’s so cute! It’s got SpongeBob, Patrick, and even Squidward right in front of the pineapple house.
The whole thing looks like an underwater scene from Bikini Bottom, with all the blue, little bubbles, and sea plants.
I can totally see this being a huge hit at a party, whether it’s for kids or just someone who’s still a big SpongeBob fan!
2. Bright and Cheerful SpongeBob Birthday Cake with Friends
Photo Credit: Pinterest
Here’s another adorable SpongeBob cake that would be a hit at any gathering.
It’s got those fun character cutouts of SpongeBob, Patrick, Mr. Krabs, and Squidward, all popping out against a blue, ocean-themed backdrop.
The green “seaweed” details and tiny bubble accents make it feel like a little slice of Bikini Bottom!
Plus, with the pineapple house in the middle, it just screams SpongeBob vibes.
3. SpongeBob Square Face Cake with Iconic Character Cutouts
Photo Credit: Pinterest
This one is a total SpongeBob showstopper!
With the cake shaped like SpongeBob himself—complete with his big, friendly smile and arms stretched out—it’s just pure joy.
The cake is topped with Patrick, Squidward, and Gary, along with a personalized birthday message that makes it feel extra special.
And that sandy look around the base is a nice touch, giving it that beachy, under-the-sea feel.
4. SpongeBob Cake with Friends
Photo Credit: Pinterest
This cake really brings Bikini Bottom to life!
SpongeBob and Patrick look like they’re having a blast, with Squidward nearby and the iconic pineapple house right in the center.
The decorations are on point with jellyfish, sea plants, and tiny ocean details that add so much character.
I could see this one being perfect for a little SpongeBob fan’s big day—it’s lively, colorful, and full of charm.
5. Ocean Ombré SpongeBob and Patrick Cake with Gary
Photo Credit: Pinterest
This last one is simple yet so cute!
SpongeBob, Patrick, Squidward, and even Gary the snail are all hanging out by the pineapple house on top of the cake.
There are colorful flowers, coral, and a cute path leading up to the house, which makes it feel like a scene straight from the show.
And the personalized name at the bottom?
Such a nice touch to make the birthday kid feel special!
6. Colorful Bikini Bottom Cake with SpongeBob, Patrick, and the Pineapple House
Photo Credit: Pinterest
How adorable is this SpongeBob cake?
It’s full of character, with SpongeBob, Patrick, and Mr. Krabs all hanging out in front of the famous pineapple house.
The blue, ocean-themed base covered with sea plants, shells, and bubbles really brings Bikini Bottom to life.
I can totally see this being a hit at any party, especially with that fun underwater vibe going on!
7. Bright and Happy SpongeBob Face Cake with Personalized Topper
Photo Credit: Pinterest
For a SpongeBob fan’s birthday, this cake is such a cheerful choice!
With SpongeBob’s huge face front and center, plus fun cutouts of Patrick, Sandy, Squidward, and Gary on top, it feels like a party with the whole crew.
The bright yellow frosting and the little details make it really pop without going overboard.
It’s simple but still full of SpongeBob’s fun spirit!
8. 3D SpongeBob Character Cake
Photo Credit: Pinterest
Isn’t this SpongeBob cake just spot-on?
It looks just like him, from his square shape and happy smile down to his classic outfit.
The colorful background adds an ocean vibe with bubbles and fun shapes.
And the birthday name and age at the bottom make it feel so personal—perfect for a young fan who wants their favorite character to be the star!
9. Fun SpongeBob Face Cake with Bikini Bottom Crew
Photo Credit: Pinterest
This one has such a lively feel!
SpongeBob’s big face on the front is instantly recognizable, and the top is decked out with his friends—Patrick, Sandy, Squidward, and Mr. Krabs, along with the pineapple house.
The textured yellow frosting adds a fun, spongy look that totally suits SpongeBob’s character.
With the birthday name and age, it’s a cake that feels extra special for the big day.
10. Bikini Bottom Birthday Cake
Photo Credit: Pinterest
Talk about a showstopper!
SpongeBob and Patrick look so cute on top, with the little birthday sign adding a personal touch.
The pineapple house and ocean decorations around the sides make it feel like a slice of Bikini Bottom, complete with sandy details and colorful sea life.
It’s a perfect choice for a SpongeBob fan’s birthday, capturing all the charm of their favorite characters in one sweet creation.
11. Underwater SpongeBob Birthday Cake with Alex’s Bikini Bottom Crew
Photo Credit: Pinterest
How awesome is this? It’s like a mini Bikini Bottom with SpongeBob, Patrick, Squidward, Mr. Krabs, and even Plankton all gathered around the iconic pineapple house!
The bright blue frosting gives it such an ocean vibe, and the sandy base with starfish and seashells really pulls everything together.
With the personalized name and age, it’s the perfect cake for any young SpongeBob fan who wants all their favorite characters to join the celebration!
11. Underwater SpongeBob Birthday Cake with Alex’s Bikini Bottom Crew
Photo Credit: Pinterest
How awesome is this? It’s like a mini Bikini Bottom with SpongeBob, Patrick, Squidward, Mr. Krabs, and even Plankton all gathered around the iconic pineapple house!
The bright blue frosting gives it such an ocean vibe, and the sandy base with starfish and seashells really pulls everything together.
With the personalized name and age, it’s the perfect cake for any young SpongeBob fan who wants all their favorite characters to join the celebration!
12. Bright SpongeBob Birthday Cake
Photo Credit: Pinterest
Isn’t this just the cutest? SpongeBob’s big happy face is front and center, with his signature eyes and tie making it instantly recognizable.
The top of the cake is filled with fun cutouts of Patrick, Sandy, Squidward, and Mr. Krabs, so it feels like a little party with all his friends.
The bright yellow color makes it pop, and the arms stretching out just add to SpongeBob’s playful vibe. Perfect for any SpongeBob lover!
13. SpongeBob Cake with Gary
Photo Credit: Pinterest
Talk about a unique SpongeBob cake! SpongeBob has the funniest expression, complete with a little hat and boots that add so much character.
He’s even sitting on a wooden plank with Gary by his side, surrounded by sandy details.
It’s such a fun twist on the usual SpongeBob cakes—perfect for a birthday with a little extra personality!
14. Colorful SpongeBob and Patrick Cake
Photo Credit: Pinterest
How fun is this design? With SpongeBob and Patrick hanging out on the front, and Gary close by, it’s like a mini scene from Bikini Bottom.
The blue ombré frosting gives it that perfect ocean look, and the sandy top ties everything together.
The birthday name and age make it feel special, and the little details like flowers and coral add so much charm. It’s definitely a show-stopper!
15. Simple and Cute SpongeBob Face Cake for a Fun Birthday Celebration
Photo Credit: Pinterest
Sometimes, simple is all you need! SpongeBob’s big eyes, bright smile, and classic tie make this cake totally recognizable.
The clean design keeps it fun without going overboard, which is perfect for anyone who wants a bit of SpongeBob charm without a ton of extras.
It’s cute, playful, and sure to bring a smile to anyone’s face.
16. Three-Tiered SpongeBob and Patrick Cake with Underwater Adventure Theme
Photo Credit: Pinterest
This cake is like a SpongeBob scene come to life! SpongeBob and Patrick are chilling on the top tier, while the other layers are filled with jellyfish, sea plants, and colorful coral that make it feel like a slice of the ocean.
The bottom layer even has the pineapple house, and a little birthday sign adds a personal touch.
It’s a total work of art and would make any fan’s big day unforgettable!
Summary
I hope you’ve found plenty of inspiration with these SpongeBob cake ideas!
Whether you’re going for something simple and cute or an elaborate undersea adventure, each of these designs brings the fun and charm of Bikini Bottom to life.
From SpongeBob’s bright smile to the iconic pineapple house and all his friends, there’s a cake here for every kind of fan.
So get ready to make someone’s birthday extra special with a cake that’s sure to bring tons of smiles, laughs, and maybe even a few jellyfish dances!