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Mermaid Party Ideas: Photos, Decorations, Food, Cake & Games

When we decided to do a Mermaid Party for Isla’s 8th Birthday, we could really let our Imaginations run Wild. Since they aren’t real creatures, it was fun to Create our own Vision and Theme for her party.

We ended up with one of the most Beautiful Party themes we’ve had! We chose Pastel colours and Beach details, and brought a little bit of the Mermaid Theme into every aspect of the party, from food to decorations to gifts and games.

With the overall Look and Feel of this Mermaid theme, it could easily be a fun and beautiful party for any age.

Mermaid Birthday Party

Mermaid Party Area & Setup

Even though we knew we’d use Mermaid themed decorations for Isla’s party, it was important to choose Colours to really tie the theme together. We decided to use Pastel Pink, Blue, & Purple as the Party Colours, and it was amazing how everything worked out, even with some unexpected weather.

We had quite a bit of rain in the week leading up to Isla’s Mermaid Party and on the Friday night prior it continued to rain. We realized we needed a rain plan, so we enclosed our Entertainment area in Blue tarp to keep the area and guests dry.

Mermaid Party Area

It wasn't until we had finished hanging the tarps that we noticed how effective this was for the Mermaid theme. The area was Blue and suddenly resembled Under the Sea. To take full advantage of this happy coincidence we hung some Mermaid & Fish stickers with Green Crepe that looked like Seaweed.

Mermaid Party Seaweed Backdrop

To create an Amazing Mermaid themed Party table, our Large Canvas Banner was hung with fishing line and attached to a Stand covered in streamers & balloons. Check out our Guide to Decorating and Hanging Party Banners for more tips & tricks. 

To decorate the tables we scattered shells that we had bought off eBay and made centrepieces of Short Glasses filled with Purple sand and Starfish. We also made Jellyfish/Octopuses from Paper Lanterns with crepe paper hanging from them.

Mermaid Shell Table Centrepieces

If you look at these pictures of the Mermaid Party, you’ll see that we used Personalised Party Decorations including the Large Canvas Banner, Flag Bunting, Posters, Party Bags, Chocolate, Water and Pop top labels from our Mermaids Party theme.

Mermaid Party Table Display

All of these Supplies were from Katie J Design and Events and blend Perfectly with the Mermaid theme while adding a Personal touch for Isla’s Birthday. They were a super Fun way to tie everything together and made the Birthday Girl feel extra special!

Mermaid Birthday Party Area Setup

Mermaid Party Food

In my mind, no Party is complete until I throw in some Fun and Yummy food for the guests to enjoy. Our Mermaid Themed Party Food turned out so well and was Super Easy to Make!

Mermaid Party Cake & Food Table

We made Snacks that looked like Shells, Starfish, and other Sea Creatures, and tied in the Pastel Colours as much as possible. It would be no trouble at all to replicate these snacks for your own Mermaid Party, and Kids could even Help!

Mermaid Birthday Party Food
  • Clam Shell Biscuits - I got some Butternut Snap Biscuits and piped Pink Buttercream in the Centre with a Large White Cashous Ball for a pearl. I served them on top of some Blended Scotch Finger Biscuits, which made perfect Edible Sand for a sweet, tasty treat.
  • Star Fish Fairy Bread - These were so simple, just Buttered Bread cut with a Star shaped Cookie cutter, sprinkled with 100s & 1000s. Easy and cute!
  • Sharks in Pink Jelly - The photos of this treat aren't the best, as it’s hard to see the full effect of this simple Jelly snack. But we half filled Plastic Wine glasses with Pink Glitter jelly. Once it set, we added a Blue Gummy shark lolly and poured over the remaining jelly. It looks just like a Shark in Pink Water!
    Mermaid Jelly Treats
  • Rice Crispy Treats - These were opened LCM Bars with Blue Frosting piped over the top in a fun pattern. We added Small White Cashous for more of an Undersea effect.
  • Mermaid Bark - We melted White Chocolate and added some sprinkles from Twinkle Sprinkles. Once set they were broken into Bark shapes.
  • Kiwi Sea Turtles - These turned out so cute! We cut a Kiwi fruit into large slices and carefully attached Grape legs with toothpicks. For the little eyes, we used Black icing gel.
  • Mandarin Crabs - Our Edible crabs were the perfect companions for the kiwi sea turtles. We pieced together mandarin segments with toothpicks and added Googly eyes on toothpicks, too.
  • Crab & Octopus Dips - We made these from Yellow & Red capsicums, one large piece for the body and little slices for the legs, with some Googly eyes for effect.
    Under the Sea Fruit Treats

    Easy Mermaid Birthday Cake

    As with all of my Birthday Cakes, Isla's Mermaid themed Birthday Cake was a Cake Hack and was super easy to make.

    We used a Plain Round Sponge and Iced it with Strawberry Betty Crocker Frosting and lots of Twinkle Sprinkles. We added Shell themed Cake Decorations and a Fondant Mermaids Tail as the centrepiece.

    To create a sand effect, we crushed up Scotch Finger biscuits and scattered it around the edges of the cake plate. To finish it off we added some mermaid birthday candles!

    Mermaid Birthday Cake

    Mermaid Party Games & Entertainment

    Themed Games are always a fun way to entertain guests. Due to the rain, we didn't have a lot of Party games this year, but we still had Mermaid Theme activities for guests to enjoy.

    We bought each of the Party kids a Plaster Mermaid to paint. It was perfect for the age group and let them be creative. The Girls loved being able to take home their very own mermaid. We also made Mermaid Colouring Books with Free Online Mermaid Printables.

    Mermaid Party Favour Table

    And for the final touch, we planned for the Girls to feel like Beautiful Mermaids. Some of the Party Guests stayed for a sleepover and we had a Mini Pamper salon setup with Foot spas, magazines & nail painting.

    Mermaid Birthday Party Bags & Favours

    Mermaid Party Bags & Favours

    Party Bags and Favours let every guest take home a bit of the party theme. Fortunately, we were able to find lots of Mermaid themed goodies for the Girls Party Bags. We included Gorgeous Mermaid Necklaces, Mermaid Lip gloss, Mermaid Bath Bombs, Glitter Nail Polish, Mermaid stickers, an LCM Bar and Milky way each.

    Mermaid Birthday Party Favours & Gifts

    Mermaid Party Decorations & Supplies

    At the end of the day, it wasn’t just an enjoyable experience for the Party Girls. Putting together a beautiful and successful Mermaid Party for Isla was fun for us, too. It’s nice to have resources for personalized themed parties we can throw for our special friends and family.

    If you’re interested in a party like the one we had for Isla, we have lots of Mermaid Themed Party Decorations over at Katie J Design and Events. Click Here to check out the Full range.

    Mermaids Party Decorations Pack

    Find Us At Katie J Design and Events

    Are you looking for high quality customizable party decorations and goodies? Katie J Design and Events has you covered! Explore our Fun range of Personalised Party Themes.

    Looking for more Party Ideas or Inspiration? Parties by Katie J is where you will find Helpful Advice on How to Throw a Great Party that Everyone Loves! We will be Sharing Easy and Delicious Party Recipes along with some Amazing DIY tips for Creating a Fun Celebration. Subscribe to our Newsletter to get Updates and Special Offers.

    Profile Image Katie Lynch

    Katie Lynch

    As the Owner of Katie J Design and Events, Katie Lynch provides Advice and DIY Tips on 'How to Create and Style an Amazing Party that Everyone Loves'. Katie shares her Easy and Affordable Party Foods, Cake Hacks, Decorating Ideas, Inspo and Photos from her 20 years of Experience as a Qualified Events Manager.

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