Thursday 2 October 2014

Under the Sea;) with Simplicity 1767

    Wow, October is here yet again! And you know what *that* means??? Ohhh yeah!! It's costume time!!:) Yay!! This year, not only do I get to make *myself* a costume;), I also got to make one for my little Isaac! Dan and I were out shopping at Costco last week and there were a few inexpensive costumes out for baby, but what fun would that be?;) Besides, I'm going as Ariel, so I thought it would be fun to do a theme! I considered making a crab costume, but Flounder won out:)

 I think Isaac makes a cute little Flounder:)

"My" Flounder:)
The "real" Flounder:)

    Soooo, I scoured the internet for ideas for Isaac's costume. Although mermaid costume tutorials  abound on the world-wide-web, there's next to nothing for Flounder! I did find a couple of costume images that I used as a guide:

....and this one which is actually my favourite one that I've seen. I couldn't find anything but the photo (no accompanying blog post:(. It was helpful as a reference though. If Isaac was younger, I probably would've made him a bunting costume like this.

So cute!

 The resulting costume, doesn't he look thrilled??:) Oh well, at least Sabastian does;). I actually purchased this Sabastian online, to go with our costumes:)

My review on PR here.

    I used a basic one-piece baby costume pattern, Simplicity 1767, and added fins on the arms, tail & head to resemble Flounder. This is a pretty easy pattern, especially if you follow it for one of the views listed. Even with my modifications, I was surprised that I finished it over the course of a few days (which is fast for me!:). I started it on Monday and posted photos on Facebook last night (Wednesday) !:)

    I'm going to make something of a disclaimer here: I probably made this process a whole lot more difficult than it needed to be. I've never sewn any type of clothing for a baby, certainly not a costume, so it was a lot of trial and error since I think I botched the sizing (yes, on such a simple pattern, I admit it!). This isn't a tutorial per say, but I'd like to share my process. There's not a whole lot out there online for a Flounder costume, so this might prove helpful to someone!:)


     I printed a picture of Flounder to use to help me get an idea of how to arrange the back markings. I simply cut strips of blue fleece on the fold. I was going to make a template, but I found it easier just to cut freehand. I trimmed the pieces as I felt necessary.

Isaac sleeping why mommy sews, what a good boy!:)

 I used steam a seam & a press cloth (using a low temperature, fleece and irons are not friends!) so the markings wouldn't shift while I sewed them (maybe I would have been fine with just pins but I just love my steam a seam!!;)

Used steam a seam to secure stripes on tail fin before stitching..

   So, I *should have left a section of the centre back seam open so I could have sewn the tail into the seam, but I forgot! I used an overcast stitch too, so rather than unpick all those stitches, I did this instead...

Here the tail fin is sewn to the back, right in the centre back seam. I used a piece of seam binding on the inside.

I pinned the tail "pieces" together and sewed around.

     Sorry, this isn't the best photo. I'm sewing Flounder's "mohawk" fin into the hood seam. I just winged it, making a bigger fin than necessary, planning to trim it down to size later. More on that a bit later...

    Here I used the middle section of Flounder's fin (drew & cut freehand) and put them together and traced to make the bigger light blue part. I thought it would help make it more symmetrical. The light blue fleece is cut on the fold. I extended the middle piece, intending to trim off the excess later.

Note: I should have used a fabric marker, as Crayola washable markers bled onto my hands & sewing machine. Washes off easily, just annoying!

 Arranging the fleece sections...

   Sewing around the middle section (starting and finishing on the "fold line" to secure:) There will be a little section of the dark blue piece that is free, will be trimmed later.

    I basted the front & back of the costume together
so I could both check the fit and "fin" placement:)
Isn't he sweet!!?:)

Checking fin placement;)

 I marked the inside of the fin, where I wanted the
line of stitching to be, with chalk.

   I didn't take a photo, but I pinned the two flaps together and sewed around the fin to make it on piece.

  Dark blue middle part on the underside is trimmed away since I only wanted it to show on the upside:)

    Here I drew freehand, on Flounder's mohawk fin, and sewed along the marks, a couple of times, and trimmed the excess carefully...

 Ta da!!:)

  I used a smaller seam allowance to join the front and back pieces, as I was concerned it might be too small. I'll probably sew around it again closer to Halloween.

The back, with Sabastian:)

The front, also with Sabastian;)

Add caption

A couple more photos...

      So there you have it! In hindsight, it would have been simpler to construct all the fins and then sew them into the seams, but oh well, I was making this up as I went & it turned out ok I think. :)

Next up: Ariel! ;)


  1. You must be so proud to have made this cute outfit for your son. I am sure you will be making many more costumes for him in the years to come. Thanks for sharing all the details.

  2. Thanks Margie:) It was so much fun! Clearly he's too young for candy, but I'm excited to dress him up and take him around to a few places:)

  3. What a cute Flounder! It's so fun to think of costumes and make them (although I never made one as elaborate as this:) My kids and I still enjoy looking back at their costumes from years past, and you will, too.

  4. Such a cute costume!!! By any chance would you be interested in selling it. Or making one for sale? Dressing up my family with the lil mermaid theme this year. I cant find a costume for my newborn boy. This would be PERFECT

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