Sunnycat? Yes, that obscure character. You got it, kid.

Part mermaid. Part cat. A quarter sliver sun. It’s Sunnycat! This character that has made an appearance in all of TWO Gabby’s Dollhouse episodes has struck a chord with my three year old. So, of course Mommy obliges and makes her dreams a reality. Sunnycat for all!

Headpiece first and foremost. I knew this part of the costume would get some heavy use so I went with sturdy construction before cosmetic.

  • headband base

  • orange tulle

  • orange, white, and fuchsia felt

  • varying pink, orange, purple iron on vinyl

  • iron on hemming adhesive

  • felt glue

  • wire

  • decorative string

  • elastic

  • thread and needle

  • orange or pink shirt

Wrap the tulle around the headband in tight overlapping layers. Lock in place by sewing along the back edge.

Cut out scale shapes of 1 1/2”-2” in all of the colors. Arrange in overlapping pattern and heat press in place. Measure proper sizing on head and create a scalloped scale pattern on the backside to be cut.

Cut orange triangles for the ears depending on wearer’s size that curve slightly on the outside edge. Cut proportionally smaller triangles in fuchsia for the inner ear. Felt glue to attach together.

Cut orange sun, and yellow circle for the sun’s center. Assemble pieces for attachment.

Position scaled headpiece so the majority hangs over the front portion. Sew it to headband along the mid-line. Sew folding the bottom 1/4” of the ears on the backside of the headband partially overlapping the sides of the scaled headpiece. Carefully iron the ear’s fold to solidify the bend. Felt glue the sun toward the front of the headpiece.

Use white felt and chalk. Measure the wearer from chest to mid-calf/knee. The width should be just big enough to cover the chest. Create the tail a little less than chest width long and about chest width extending out, the double leafed tail is extended out from there. Fold the tail in half length-wise and draw a small curve along the inner edge to be cut for the chest detail.

Cut iron on vinyl in approximately 2” wide scales of varying pinks, purples, and oranges.

Beginning with the end of the tail, pattern scales in an overlapping formation of rows. Periodically iron sections to the felt to lock in place before moving on to other rows. Flip the tail over and cut off excess trim.

Position the tail on the shirt. Pin in place. Turn inside-out, and adhere the hemming adhesive tape with an iron.

Cut wire to length of tail. Cut scrap felt to cover wire, and attach with iron on adhesive. Cut length of decorative string from the person’s arm when extended out down to the bottom of the tail. This will be used to “wag” the tail. Connect the string under the felt covering. Create a bracelet from elastic and sew the string together with the elastic bracelet.

Sunnycat in action.

Little Miss Mermaid

Ariel has been the princess of choice recently for our littlest (and honestly, there is no other choice.) It was also the first time requesting piggies which I really hope will continue.

Supplies needed:

  • base dress

  • Stiff felt in mermaid themed colors

  • Optional fabric with special patterning for the shell top

girl toddler spin pigtail homemade mermaid costume

Creating a base for this from scratch was out of the question for me right now, but I am certainly not above repurposing! Found this mermaidy gem after a quick stop into my local ‘Once Upon a Child’. I was initially searching for something more aquatic, but the patterning on this one felt perfectly scaly to me. Let’s make it happen!

metallic black shiny hexagonal pattern dress

Using a semi-circle, the scale scaled to 2”x3” and cut out on stiff felt (using your personal mermaid color patterning preferences) on the Cricut, or by creating a template and cutting.

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elderly dog mettalic black dress scales pin placement

Pin the scales spiraling down the skirt, and sew to attach. Get emotional support for this tedium from your trusty pup.


Shell exterior was cut on the Cricut, but can easily be freehand. Mark your shape by laying the cut outs on the felt and draw the shell shape with a slight trim around the outside edge.

For the Shell interior, I cut the fabric (or use specially patterned felt) on the Cricut, and put the shape over a pop of color in stiff felt to make them extra fancy fun. Place the interior shape onto the felt with fabric glue, or sewn. Sew shells in proper placement on the bodice. (My favorite feature.)

mermaid shells top homemade

girl toddler swishing costume mermaid tail

Tail fin and embellishments templates were created freehand on oversized stiff felt to have enough for both front and back (because you can never have too much tail fin.) Our Little Mermaid definitely appreciated the extra swishability this provided.