How to Throw an Iridescent Mermaid Party

Iridescent Mermaid Party Ideas

In case you hadn’t heard, mermaids are the new unicorns!

So if you’d like your next party to be stylish and on trend, this is the theme for you!

Keep reading to find out how to throw a stunning iridescent mermaid party with free printables, easy party DIYs and our gorgeous iridescent party supplies. Kids and grown-ups will love it!

Setting up your mermaid party

The essentials

Start planning your mermaid party by picking up all the essentials like plates, cups, napkins and tablecloths.

We LOVE using iridescent party supplies for this theme because the shimmer and shine will almost make it look like your party is underwater!

Here’s a quick checklist of all the basic party supplies you’ll need:

Iridescent Mermaid Party Supplies


Next, get decorating! One of our favourite mermaid party decorations is this free printable shell bunting.

Simply print it out and cover each shell in this iridescent gift wrap that will give it a lovely underwater shine. Then stick the shells to a long piece of ribbon and hang it along the wall of your party venue!

Free Printable Shell Bunting

This mermaid balloon is an absolute must! Blow it up with helium and use it as a focal point for your decorations!

Large Mermaid Balloon

Balloons will also add to your cute underwater look! Make sure you choose latex balloons with a pearl effect like these pink and blue ones, then mix and match them with some clear latex balloons like these.


You could even mix and match with some iridescent star balloons like these and decorate the walls with this gorgeous iridescent backdrop!

Foil Star Balloons

Party food

Next up is party food! Not everything has to be on theme but it’ll make your buffet more fun if you have a couple of easy mermaid themed snacks.

Here are a couple of our favourite mermaid party food ideas:

Oyster macarons


Starfish cookies


Crab croissants


Starfish sandwiches

Cut them out with this star-shaped cookie cutter.

Mermaid cupcakes

Simple decorate plain cupcakes with our free printable mermaid tail cupcake toppers – just print them out, cover them in this iridescent gift wrap and stick each one to a cocktail stick.

Mermaid Cupcakes

Party bags

Last but not least, send your guests home with a cute mermaid party bag filled with treats! We used these stunning iridescent party bags and decorated them with a mermaid tail and a shell gift tag (both are free to download!)

DIY Mermaid Party Bags

Ready to throw your own magical mermaid party? Pick up all the iridescent party supplies featured in this post on Party Delights or stay on our blog for even more inspiring party ideas!