11 DIY Mermaid Costumes | DIY Formula

11 DIY Mermaid Costumes

Mermaids make a fun costume for Halloween, parties and dress up. Find the DIY mermaid costume fit for your age. We featured a variety for kids, teenagers, and adults. There’s even one that can be worn as an everyday outfit for fun. Whether you’re aiming to be cute, sexy or scary, these creative DIY costumes will make you the mermaid you always wanted to be.

1. DIY Mermaid Costume, Hair and Makeup

Creating a DIY mermaid costume is a breeze with this no-sew tutorial. This project is easy to do and has advice for makeup and hair to go with the costume. There is also a part at the end on how to customize this costume for cold weather.

Level of difficulty: Easy
Duration: 30 minutes
Materials you need:

Purple top
Green scale fabric
Starfish
Pearl stickers
White fabric paint
Gold fabric paint
Glitter fabric paint
Headband
Glue gun
Fabric scissors
Paint brush
Dark green eye shadow

2. DIY Halloween Mermaid Costume

This is a unique DIY mermaid costume. They used one of their own skirts to measure out the size and shape of the mermaid tail. The top is a beautiful sea shell and sequin combination that is sure to turn heads.

Level of difficulty: Medium
Duration: 1-2 hours
Materials you need:

Blue shiny fabric
Fabric chalk
Pins
Green fabric paint
Paint sponge
Fabric scissors
Fabric glue
Beige bra
Beige fabric
Seashells
Sequins

3. DIY Sexy Mermaid Costume

If you don’t want a mermaid tail, but still want a sexy DIY mermaid costume, this tutorial is a great option. There is no sewing involved and is quick and easy to make.

Level of difficulty: Medium
Duration: 1-2 hours, plus overnight for glue to dry
Materials you need:

• 2 Large sea shells
Glitter
Stacked bracelets
Pearl stickers
Organza
Sequin fabric
Decorative fishnet
Fabric tape
Spray adhesive
Bikini top
E6000 glue

4. DIY Easy & Inexpensive Mermaid Costume

This DIY mermaid costume is easy to make. They use a pre-owned skirt, but you can easily make one as well. It’s also a cute outfit that can be worn all year round.

Level of difficulty: Easy
Duration: 30 minutes
Materials you need:

Pencil skirt
Stamp carving block
Fabric glue
Glitter
Paint brush
Fabric paint
White halter top

5. DIY Toddler Mermaid Tutu

Here is a cute mermaid costume for a child. This tutorial is easy to follow and fun to make.

Level of difficulty: Easy
Duration: 15-30 minutes
Materials you need:

Crochet knit tube top
Tulle (two different colors)
Elastic
Pearl stickers
Gold fabric paint
Hair barrette
Starfish
• 2 Medium sea shells

6. DIY Mermaid Costume Under $50

For a unique mermaid costume, this DIY tutorial makes a fully customizable top using beads and pearls. The pattern on the skirt is hand-drawn with glitter glue, but a homemade stamp could do the same thing.

Level of difficulty: Easy
Duration: 2-3 hours
Materials you need:

Beige strapless bra
Fabric glue
Shiny fabric
Pearl beads
Flatback beads
Glitter glue (optional)
Starfish
Tulle
• 2 Large sea shells

7. DIY Siren Mermaid Costume

This DIY siren costume uses leggings instead of a fin. It’s a beautiful siren outfit that’s sure to turn heads at the next costume party.

Level of difficulty: Medium
Duration: 3-4 hours
Materials you need:

• 2 Large sea shells
Pearl beads
Flatback beads
Seashells
E6000 glue
Beige bra
Headband
Ribbon
Wire
Translucent fabric
Glitter
Sequin elastic
Tulle
Scale Leggings

8. DIY Easy Mermaid Costume

If you want an easy-to-make mermaid costume that doesn’t involve a lot of gluing pearls and beads, but still looks good, this tutorial is for you.

Level of difficulty: Easy
Duration: 30 minutes
Materials you need:

Starfish
Glitter paint
Hair barrette
Sequin tube dress
Tulle
Needle and thread
Metallic Bandeau
Long pearl necklace (Optional)
Starfish cuff (Optional)

9. DIY Skeleton Mermaid Costume

You can’t go wrong with a skeleton costume for Halloween. To make it more unique, try this DIY skeleton mermaid to make you stand out from the rest of them.

Level of difficulty: Easy
Duration: 1-2 hours
Materials you need:

Black sequin fabric
Safety pins
Translucent fabric
Needle and thread
White felt
Fabric glue
Black crop top
• 2 Large white sea shells
Tiara
Starfish
Seashells
Gem stickers
Silver paint
Glitter
White Halloween face paint
Black Halloween face paint
Red eyeshadow
Black eyeshadow
Black liquid eyeliner
Purple face glitter
Purple lipstick
Pink wig (optional)

10. DIY Child Mermaid Costume No Sew

This DIY mermaid tail can be made to fit anyone, from kids to adults. The tutorial is quick and easy to follow. Just pair this mermaid tail with any cute top and you have a fun costume.

Level of difficulty: Easy
Duration: 30 minutes
Materials you need:

Green metallic fabric
Tulle
Nylon string
Fabric scissors
Glue gun

11. DIY Ariel Costume

What is a mermaid costume list without Ariel? Here is the tutorial that will have you feeling like a princess mermaid at the costume party.

Level of difficulty: Easy
Duration: 15 minutes
Materials you need:

Purple felt
Sequins
Fabric scissors
Safety pins
Glue gun
Beige bandeau bra
Blue sequin fabric
Tulle
Red wig (optional)

Conclusion

You can never go wrong with a mermaid costume, and these DIY ideas are the perfect place to start. Also, in case you need a Halloween costume idea, you can also read our DIY article for inspiration. These mermaid costumes are fully customizable and you can always take the top from one to pair with the tail of another. Show us how you made your mermaid costume to fit your style!

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