DIY Coffee Filter Mermaid Costume
You can make your little mermaid's fishtailed fantasy become a reality by coloring coffee filters in ocean hues for an artistic, whimsical look. It's a creative costume that’s sure to make waves! We especially love the starfish hair and jewelry accessories.
Get the tutorial at Hello, Wonderful.
2DIY Crochet Mermaid Costume for Babies
Oh, baby! This 100-percent crochet costume is a soft, cuddly, and oh-so-cute choice for Halloween photo op!
3Upside-Down Mermaid Costume
A mermaid tail makes a statement, but it can making getting around on Halloween night a challenge! This cute idea flips the idea on its head with a blue bodysuit, tulle skirt, and mermaid headband.
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4Mermaid Dog Costume
Who says humans should have all the mermaid fun? We love this funny ideas for dogs. Simply pair a shell top and a grass skirt, and you have a pet-approved mermaid costume. As with any costume for dogs, make sure your pet is comfortable, and only allow him to wear the costume when you can watch him.
Shop Mermaid Costumes for Dogs
5DIY Adult Mermaid Costume
DIY No-Sew Mermaid Crown
Layer felt seashells, starfish, and seaweed to create a perfectly royal under-the-sea-inspired crown. Dot pearl beads on top for a fancy finishing touch.
Get the tutorial at Lia Griffith.
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7
Mermaid Dress
7
Mermaid Dress
For a semi-homemade mermaid costume, start with this dress. Add a crown and shell accessories and ta-da!
8No-Sew Mermaid Costume Tutorial
This step-by-step video for a no-sew DIY mermaid costume makes for an easy, one-of-a-kind look using fusible bonding web (hem tape) and fabric glue.
9DIY Tween Mermaid Costume
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10DIY Baby Mermaid Costume
DIY Mermaid Makeup
For a look that's Ariel-approved, complete your mermaid costume with some iridescent makeup. You'll look like you just emerged from the water, with flawless mermaid hair intact, of course.
Get the tutorial at Dawn P. Darnell.
12DIY Mother-Daughter Mermaid Costume
There's so much adorableness going on here that we don't know where to start! Match up with your mini mermaid by donning matching seashell shirts and tails.
Get the tutorial at A Beautiful Mess.
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13DIY Fancy Mermaid Costume
Between the sequins, tulle, and gold fabric, your mermaid-in-training will feel like the belle of the ball…or in this case, the coral reef!
Get the tutorial at Heather Handmade.
14
Sequins Mermaid Top
14
Sequins Mermaid Top
Pair a ruffled sea-quin top with a mermaid-tail skirt and a few other accessories for a magical mermaid costume. The shirts are lined in comfortable cotton and are available in lavender, blush, and gold.
15Mermaid Makeup Tutorial
The key to the scale-design is, get this—a fishnet stocking! Glittery accents make your face seriously sparkle.
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16DIY Maternity Mermaid Costume
If you have a mermaid or merman on the way, you can still show off an ocean-inspired costume this Halloween. With stretchy, shimmering fabric that captures your mom-to-be glow, your baby bump will take center stage.
Get the tutorial at Kara Metta.
17DIY Mermaid Costume With Leggings
With a little tulle here and some mermaid makeup there, you can help your child transform a pair of easy-peasy leggings into a maritime masterpiece. There's a good chance she'll want to wear this costume long past Halloween.
Get the tutorial at Brie Brie Blooms.
18DIY Mermaid and Merman Couple Costume
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19DIY Seashell Mermaid Costume
Festooned with faux shells, silver coral, and real starfish, this costume is truly an ocean fantasy come to life.
Get the tutorial at Staffordable Blog.
20DIY Mermaid and Sailor Couple Costume
Shelby Deering is a lifestyle writer who specializes in decor, home tours, wellness, travel, vintage, and feel-good stories for national publications. She’s from Madison, Wisconsin, and when she’s not writing, you’ll find her running local trails, shopping flea markets, or going for walks with her husband and corgi.
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