Make a Splash with These Creative Mermaid Cake Ideas for Your Next Celebration

Mermaid cake ideas are the perfect way to add a touch of magic and whimsy to any celebration. From shimmering scales to seashell accents, these cakes are sure to impress both young and old alike. Whether you’re planning a birthday party or just want to indulge your inner mermaid, here are some creative and enchanting ideas for your next cake creation.

10 Popular Mermaid Cake Designs You Need to Try

1. Simple Mermaid Tail Cake

If you’re looking for a simple yet elegant mermaid cake design, consider the classic mermaid tail cake. This design involves creating a cake in the shape of a mermaid tail and adding some basic decorations like scales and fins. It’s perfect for those who want a mermaid-themed cake without going overboard with the decorations.

  • To create this design, you’ll need a mermaid tail-shaped cake pan or you can carve the shape out of a regular rectangular or round cake.
  • Use fondant or buttercream frosting to cover the cake and add texture with an icing comb or fork to create scales.
  • Add some edible pearls or seashells as accents to complete the look.

2. Underwater Scene Cake

If you want to take your mermaid cake design up a notch, try creating an underwater scene on your cake. This design involves adding various sea creatures like fish, coral, and seaweed along with your mermaid figurine to create an entire underwater world on top of your cake.

  • To create this design, start by covering your cake in blue fondant or buttercream frosting to represent the ocean.
  • Add various sea creatures made out of fondant or gum paste such as starfish, crabs, and jellyfish.
  • Create coral and seaweed using piping bags filled with green and pink frosting respectively.
  • Finally, place your mermaid figurine on top of the scene as if she’s swimming through her underwater kingdom.

How to Make a Stunning Mermaid Tail Cake Topper

Materials Needed:

  • Fondant or gum paste
  • Rolling pin
  • Mermaid tail template or mermaid tail cutter
  • Edible glue or water
  • Edible shimmer dust (optional)


  1. Roll out your fondant or gum paste to the desired thickness.
  2. Using a mermaid tail template or cutter, cut out the shape of your mermaid tail.
  3. If using a template, gently lift the fondant tail and place it on a curved surface like a rolling pin to dry for at least 24 hours. If using a cutter, you can skip this step.
  4. Add some edible glue or water to the back of your mermaid tail and attach it to your cake.
  5. If desired, add some edible shimmer dust to give your mermaid tail some extra sparkle.

The Best Colors to Use for Your Mermaid-Themed Cake

The colors you choose for your mermaid-themed cake can make all the difference in creating an enchanting undersea world. Here are some color combinations that work well:


Pastel shades of blue, green, pink, and purple create a soft and dreamy underwater atmosphere. These colors work well for simple designs like the classic mermaid tail cake.


If you want a more vibrant and playful look, consider using bright shades of blue, green, yellow, and orange. These colors work well for more elaborate designs like an underwater scene cake with multiple sea creatures.


Metallic shades of gold and silver can add a touch of glamour and sophistication to your mermaid cake design. These colors work well for accent pieces like seashells or mermaid tail cake toppers.

Essential Tools and Materials for Making a Mermaid Cake

If you’re planning to make a mermaid cake, it’s important to have the right tools and materials on hand. Here are some essential items you’ll need:

Cake Pans

You’ll need at least two round cake pans of different sizes to create the layers of your mermaid cake. You can also use square or rectangular pans if you prefer.

Frosting Spatulas

To apply frosting to your cake, you’ll need a set of frosting spatulas in various sizes. These will help you achieve smooth, even layers of frosting.

Piping Bags and Tips

If you plan to add decorative elements to your mermaid cake using frosting, you’ll need piping bags and tips. These come in various shapes and sizes, allowing you to create intricate designs.

Fondant or Gum Paste

To create 3D decorations for your mermaid cake, such as seashells or starfish, you’ll need fondant or gum paste. These materials can be molded into any shape and then left to dry before being added to the cake.

How to Incorporate Seashells into Your Mermaid Cake Design

Seashells are a popular decoration for mermaid cakes. Here are some tips on how to incorporate them into your design:

Use Fondant or Gum Paste

To create realistic-looking seashells, use fondant or gum paste. Roll out the material and cut it into the desired shape using a cookie cutter or knife. Then use a small brush dipped in food coloring to add details like texture and shading.

Add Edible Pearls

To make your seashells look even more realistic, add edible pearls. These can be purchased at most baking supply stores and come in a variety of colors and sizes. Simply attach them to the fondant or gum paste using a small amount of frosting.

Create a Seashell Border

If you want to incorporate seashells into your mermaid cake design without making them the main focus, create a border around the edge of the cake using seashell-shaped fondant cutouts. This will give your cake a subtle beachy vibe.

Creating an Ombre Effect on Your Mermaid Cake Frosting: Tips and Tricks

An ombre effect is when one color gradually fades into another. Here’s how to achieve this effect on your mermaid cake frosting:

Choose Your Colors

Pick two or three colors that complement each other and fit with your mermaid theme. For example, shades of blue and green work well together.

Start with White Frosting

Begin by applying white frosting to your cake as a base layer. This will help the colors blend together smoothly.

Add Food Coloring Gradually

Mix food coloring into separate bowls of frosting, starting with just a drop or two for the lightest shade and adding more as you go for darker shades. Use a spatula to blend the colors together where they meet.

Apply Frosting in Layers

Using a frosting spatula, apply each color of frosting in horizontal stripes around the sides of the cake, blending them together as you go. Repeat this process for each layer until you reach the top of the cake.

Fantastic Edible Decorations to Enhance Your Mermaid Cake Design

There are many edible decorations you can use to enhance your mermaid cake design. Here are a few ideas:

Edible Glitter

Add some sparkle to your mermaid cake by sprinkling edible glitter over the frosting. This will give it a magical, shimmering effect.

Candy Pearls

Candy pearls come in a variety of colors and sizes and can be used to create a variety of effects on your mermaid cake. Use them as accents on seashells or as bubbles in the water.

Chocolate Seaweed

Melt green chocolate and pipe it onto parchment paper in the shape of seaweed. Once it hardens, you can break it into pieces and use it as an edible decoration on your mermaid cake.

The Secret Techniques Involved in Making a 3D Mermaid Cake Revealed

Making a 3D mermaid cake requires some special techniques. Here are some tips:

Create a Base Structure

To make sure your 3D mermaid cake stays upright, create a base structure using dowels or wooden skewers. This will provide support for the upper layers of the cake.

Sculpt with Fondant or Gum Paste

To create realistic-looking fins, tail, and other features, sculpt them out of fondant or gum paste. These materials can be molded into any shape and then left to dry before being added to the cake.

Add Details with Food Coloring

Once you’ve created your 3D elements, add details like shading and texture using food coloring applied with a small brush. This will make them look even more realistic.

Fondant or Buttercream Frosting: Which One is Better for Your Mermaid Cake?

Both fondant and buttercream frosting have their pros and cons when it comes to making a mermaid cake. Here’s what you need to know:


  • Pros: Fondant provides a smooth, polished finish that’s perfect for creating intricate designs. It also holds up well in warm temperatures.
  • Cons: Fondant can be difficult to work with if you’re not experienced, and some people don’t like the taste.

Buttercream Frosting

  • Pros: Buttercream frosting is easy to work with and tastes delicious. It’s also more forgiving than fondant if you make a mistake.
  • Cons: Buttercream frosting can melt in warm temperatures, which can be an issue if your cake will be displayed outside or in a warm room.

Adding Shimmer and Glitter to Your Mermaid Cake Decoration: A Step-by-Step Guide

If you want to add some shimmer and glitter to your mermaid cake decoration, here’s how:

Mix Edible Luster Dust with Vodka

Mix edible luster dust with vodka until it forms a paste. The vodka will evaporate quickly, leaving behind the shimmering dust on your cake.

Apply the Mixture with a Brush

Dip a small brush into the luster dust mixture and apply it to your cake in thin layers. Be sure to let each layer dry before adding another one.

Add Edible Glitter

Once the luster dust has dried, you can add edible glitter for an extra shimmering effect. Simply sprinkle it over the frosting or decorations.

In conclusion, mermaid cake ideas offer a fun and creative way to add a touch of magic to any special occasion. With endless possibilities for design and decoration, these cakes are sure to make a splash at your next event.

The article provides 10 popular designs for mermaid cakes, including a simple mermaid tail cake and an underwater scene cake. The article also includes instructions on how to make a stunning mermaid tail cake topper using fondant or gum paste.

What piping tip for mermaid cake?

When piping scales, it is recommended to use a large round tip, although some people, including myself, often just cut off the tip of a piping bag. It’s important to position the bag in such a way that the seams are not visible on the scales. This tip was shared on May 10, 2017.

What flavor is mermaid cake?

A Mermaid Layer Cake is a necessity for any mermaid-themed party. This cake is made with moist vanilla cake and topped with vanilla almond buttercream, making it the perfect dessert for any summer occasion.

How many cupcakes for mermaid tail?

The mermaid tail cupcake cake template has a total of 24 cupcakes. You can use a boxed cake mix to make exactly 24 cupcakes, but you can also make homemade cupcakes such as funfetti or chocolate if you prefer. This information was published on July 7, 2019.

What is the most used cake nozzle?

The round nozzle is a popular choice among bakers worldwide, as it allows for various cake decorating techniques such as writing, bordering, and more.

What is the expensive flavor cake?

Without a doubt, Masami Miyamoto’s diamond chocolate cake holds the title of being the most expensive cake in the world. Although its flavor is not widely known, it is said to contain ganache chocolate. The cake’s height was only 14 inches, but it was adorned with 100 diamonds weighing a total of 50 carats.

What flavor is mermaid ice?

The flavor of the product is a blend of Strawberry, Raspberry, and Blueberry, known as “mixed berry.” It’s worth mentioning that many participants in our sweepstakes have shown interest in trying Mermaid.

The article provides 10 popular designs for mermaid cakes, including a simple mermaid tail cake and an underwater scene cake. The article also includes instructions on how to make a stunning mermaid tail cake topper using fondant or gum paste.

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