Mermaid Costume - Clamshell Top

from KnitsyCrochet

Mermaid Costume - Clamshell Top Pattern


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Crocheting: Mermaid Costume - Clamshell Top
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Pattern Details:

Pattern Details






Girls, Infant/Baby



Skill Level:

medium skill level requirement Intermediate

Basic Skills Necessary:

  • Basic crochet stitches
  • Back Post Half Double Crochet
  • Front Post Half Double Crochet
  • Back Post Double Crochet
  • Front Post Double Crochet
  • Treble Crochet
  • Picot (instructions provided)

Pattern Description:

I had a lot of fun creating this whimsical mermaid outfit! Costume features a starfish headband and realistic clamshell bikini top. Texture of tail is a bit rough to simulate fishy scales! =) Pattern is detailed and easy to follow!

Pattern by KnitsyCrochet - Copyright 2014. Please do not copy, sell or redistribute pattern. Feel free to sell finished product.


2 Inches = 6hdc & 4 rows

Sizing / Finished Measurements:

  • Newborn: 16-17" or 6-7lbs
  • 0-3 Months: 17-23" or 7-12 lbs
  • 3-6 Months: 23-27" or 12-17lbs
  • 6-9 Months: 27-28" or 17-19lbs
  • 9-12 Months: 28-29" or 19-22lbs


  • 1 Skein Yarn in Green
  • 1 Skein Yarn in Dark Green
  • 1 Skein Yarn in Bright Pink

You Will Also Need:

  • Yarn Needle
  • Stitch Marker
  • Scissors

Preferred Brand/Yarn:

Caron Simply Soft

About Designer

About Designer

KnitsyCrochet on

It was my Mother who first taught me to crochet. She patiently showed me, an impatient six year old, how to twist yarn between the fingers to create chains. Soon all of my friends and family were decked with yarn necklaces and bracelets!

As I progressed, I appreciated patterns that were clear and concise, with just a few pictures for the tricky parts. This is the kind of pattern I try to ...

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