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You are here: Home / HOLIDAYS / Halloween / 13 Last Minute Easy DIY Mermaid Costume Ideas

13 Last Minute Easy DIY Mermaid Costume Ideas

March 2, 2023 by Christina Marie

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easy DIY mermaid costume for adults

DIY Mermaid Costume for Adults

Love The Little Mermaid or the idea of dressing up as a mermaid for Halloween?

Believe it or not, it’s really EASY to make an adult mermaid costume yourself.

This guide for making a DIY mermaid costume for adults includes:

  • Sexy and cute mermaid costume ideas
  • The best mermaid skirts (mermaid tail) for an adult DIY mermaid costume
  • Mermaid bikini tops for a sexy DIY Little Mermaid costume
  • Mermaid shirts for a more modest DIY mermaid costume for adults
  • How to dress up as The Little Mermaid for Halloween (what you need)
  • DIY mermaid costume jewelry
  • DIY mermaid costume accessories

You’ll also find more DIY mermaid costumes, including:

  • Starbucks Mermaid DIY costume for adults
  • Scary mermaid DIY costume for adults
  • Mermaid costumes for college girls

Best of all, this guide with what you need for a DIY mermaid costume is no sew.

You don’t have to be crafty or know how to sew!

This post contains affiliate links. View the disclosure here.

In this article:

  • 13 Mermaid Costume Ideas for Adults
  • DIY Mermaid Costume Tops
  • Mermaid Tails for Costume
  • DIY Mermaid Costume Plus Size
  • DIY Mermaid Costume Leggings
  • How to Dress Up as The Little Mermaid for Halloween
  • Wig for The Little Mermaid Costume DIY
  • DIY Mermaid Costume Adults Accessories
  • Starbucks Mermaid DIY costume for Adults
  • More Costume Guides

13 Mermaid Costume Ideas for Adults

Below are mermaid costume ideas. Continue reading to learn exactly what you need to create a last-minute DIY mermaid costume.

1. Scary mermaid DIY Costume for Adults

Want a scary mermaid DIY costume? Here’s an idea for a DIY sexy mermaid costume.

scary mermaid DIY costume for adults

Scary Mermaid

What You Need for a DIY Scary Mermaid Costume

2. Sexy Mermaid Costumes for College

Are you in college and looking for mermaid costume inspiration? Below are photos of college women dressed up for Halloween as Mermaids.

sexy mermaid costumes for college girls

Love a Mermaid!

Dress Up as these DIY Adult Mermaids for Halloween

3. Blue DIY Easy Mermaid Costumes for College

fun blue mermaid college costumes

Super Easy DIY Costume

Get These Mermaid DIY Costumes

4. Sexy Rhinestone Mermaid Bra Top for DIY Mermaid Costume

Mermaid DIY costume for adults top

Available in Green, Gold, Blue, and Silver

View on Amazon

5. Seashell Bikini Top and Skirt for DIY Mermaid Costume

DIY mermaid top

Mermaid Seashell Bikini Top

View on Amazon

6. College DIY Mermaid Costumes

easy DIY mermaid costumes for college

Perfect for Friends

Get These Mermaid DIY Costumes for College

7. Corset Bra for Mermaid DIY Costume

corset rhinestone top for mermaid DIY costume

Lace Rhinestone Bustier Crop Top

View on Amazon

8. Purple Mermaid Costume

This mermaid skirt tail looks amazing on women with curves.

curvy mermaid DIY costume for adults with blue mermaid skirt

So Cute!

View on Amazon

9. Ariel Mermaid Costume

Women say this mermaid skirt is super cute and fits perfectly.

cute mermaid DIY costume for adults with mermaid skirt tail

Fits True to Size

View on Amazon

10. Mermaid Costume with Pants

mermaid costume with pants

Image via Amazon.com

Copy this Mermaid Costume Idea

11. Sexy Mermaid Costume

cute DIY mermaid costume for adults

So cute!!

View on Amazon

12. The Little Mermaid Costume

Mermaid Couples Costume with Green Mermaid Skirt

Sizes Up to 1X (Plus)

View on Etsy

13. The Little Mermaid DIY Costume

cute Little Mermaid costume with dog

So cute!!!

View on Amazon

Women say this is the perfect mermaid skirt.

DIY Mermaid Costume Tops

You can go with a bikini top, seashells, or a tank top. You have so many options with DIY mermaid costumes for women.

Crop Top Mermaid Top

reflective blue mermaid top

Crop Top for Mermaid

View on Amazon

Sparkly Tube Top for Mermaid DIY Costume

Mermaid costumesparkly tube top

Sparkly Tube Top

View on Amazon

Simple Mermaid Bikini Top

The Little Mermaid purple bikini top

Purple Bikini Top

View on Amazon

Mermaid Tails for Costume

Mermaid Costumes Skirts and Tails for Adults

So Many Skirts to Choose From!

You will LOVE the mermaid tail below. I bought this mermaid tail skirt and it looked great!

Mermaid Tail for Adult Costume (Available in Plus Sizes Up to 2/3XL)

mermaid green tail costume for adults

Mermaid Skirt with Hologram Finish

View on Amazon

Women LOVE!!! this mermaid skirt.

 
 

Amazon also has other mermaid costume skirts with great ratings.

Mermaid Plus Size Skirt

This mermaid costume skirt comes in sizes up to 4X.

Plus Size Faux Leather Pleated High Waist Maxi Mermaid Skirt

Sizes Up to 4X

View on Amazon

Blue Metallic Hologram Mermaid Skirt with Waist Pearl Chain

blue mermaid hologram shiny skirt tail for women with pearl chain

Skirt by Spooktacular Creations

View on Amazon

Green Metallic Hologram Mermaid Skirt with Waist Pearl Chain

green metallic mermaid skirt with chain

Green Mermaid Skirt

View on Amazon

Mermaid Tail Maxi Skirt (Plus Size Friendly)

This mermaid tail skirt has a flare at the bottom. It also comes in sizes up to XX-Large.

mermaid tail skirt that flares out

Quesera Women's Mermaid Tail

View on Amazon

Mermaid Tail Skirt with Mesh and Sequins (Plus Size Friendly)

Disney Ariel mermaid skirt with flare

Plus Size Friendly

View on Amazon

This mermaid skirt comes in sizes up to 4X-Large.

 
 

DIY Mermaid Costume Plus Size

Here are options for easy DIY mermaid costumes for adults in plus size.

You may also want to check out this DIY plus size Ariel costume guide.

DIY Mermaid Plus Size Costume

DIY plus size mermaid costume

DIY Plus Size Mermaid Costume

What You Need for this Sexy DIY Plus Size Mermaid Costume

DIY Mermaid Plus Size Costume

plus size DIY mermaid costume on Amazon

So Stunning!

View on Amazon

Get this Plus Size Mermaid Costume

DIY Mermaid Costume Leggings

If you don’t want to wear a skirt, these mermaid leggings are perfect for an easy DIY mermaid costume for adults.

Mermaid Leggings for DIY mermaid costume

Mermaid Leggings for Women: Sizes 0-24

View on Amazon

This is one of my favorite mermaid costumes for adults if you live somewhere cold!

DIY mermaid costume with leggings

So Cute!

View on Amazon

How to Dress Up as The Little Mermaid for Halloween

Here’s what you need to buy to look EXACTLY like Disney’s The Little Mermaid.

Option 1: The Little Mermaid DIY Costume

Disney's The Little Mermaid DIY Costume for Adults

The Little Mermaid Costume

What You Need for this DIY Mermaid Costume for Adults

 

Option 2: The Little Mermaid DIY Costume

DIY The Little Mermaid Costume for Adults

DIY Costume

What You Need for this DIY The Little Mermaid Costume

Wig for The Little Mermaid Costume DIY

If you want to dress up as The Little Mermaid, you may want to wear a wig.

This red wig is perfect for a The Little Mermaid DIY costume.

The Little Mermaid Wig for Costumes

Ariel Wig

View on Amazon

DIY Mermaid Costume Adults Accessories

A DIY mermaid costume for adults isn’t complete without the right accessories! 

Here’s what you’ll need for the best mermaid costume DIY.

Jewelry for Mermaid Costume DIY

Mermaid Crown for DIY Mermaid Costume for Adults

Mermaid Hair Accessories for Last Minute DIY Mermaid Costume

Mermaid Trident for DIY Mermaid Costume Accessories

Mermaid Makeup for Mermaid DIY Costume

Starbucks Mermaid DIY costume for Adults

Dressing up as a Starbucks mermaid is a fun and unique DIY mermaid costume!

Starbucks mermaid DIY Costume

Starbucks Mermaid Costume

How to Dress Up as a Starbucks Mermaid

 

 

More Costume Guides

Mermaid Costume Ideas - Pinterest 

Plus Size Ariel DIY Costume (from Curvy Styled)

Easy DIY Mermaid Costume for Adults

Easy DIY Mermaid Costume for Adults

Leave a Comment / Filled Under: Halloween

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