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Starfish Costume How-To by Brenda Ponnay for

DIY Under-the-Sea Costumes: Starfish!

By Brenda Ponnay

Did you want to make a cute little Starfish Costume for Halloween? Out of cardboard and pool noodles, no less? You have come to the right place! Please scroll down and observe these very simple steps.  This costume is the last one in our Under-the-Sea Series.

Starfish (DIY Under the Sea Costumes) by Brenda Ponnay for

Supplies for a kids’ Starfish costume

1. one large piece of cardboard
2. one pool noodle (you probably won’t even need all of it, in fact if you made the octopus costume and you have that one octopus leg left over this is what you’ll need it for!)
3. Some paint (spray paint* or acrylic will do)
4. box cutter**
5. serrated knife*** and cutting board
6. some ribbon
7. hole puncher (optional)

How to make a Starfish costume

First, cut a five-legged star out of your cardboard. Don’t worry about being perfect. In fact, the more rounded and wobbly the starfish arms are, the better. That way your starfish will look like he’s squishing along the ocean floor one suction cup at a time. Cut a hole in the center for your child’s head (or your head).

Next you’ll need to cut your pool noodle into 1 inch segments. It’s easiest with a serrated knife but be careful and use a cutting board so you don’t cut your table or your hand while you’re at it. Ahem. That’s never happened to me. Nope.

Now it’s time to paint! Non-toxic spray paint is the fastest and easiest method but if you have some regular old acrylic paint on hand, that’s good too. For this costume I used some red and some fluorescent orange spray paint I had on hand but I’m the weird crafting lady who has a rainbow of spray paint just sitting in a box in her closet. Feel free to make your starfish any or as many colors as you like. Do however, paint the suction cups (aka sections of pool noodles a contrasting color)

Once all your paint is dry, it’s time to glue. This part is a bit tricky. I did use hot glue but hot glue melts pool noodles so you have to do it just right and fast.  If you have more time I’d recommend regular non-toxic white glue or any quick drying glue. Just make sure you let the glue harden so those suction cups are secure and not sliding off on Halloween night (code for: plan ahead).

You’ll also need to punch two holes on either side of the face hole and attach some ribbon so you can tie it on your head on Halloween night.

That’s it. Add some solid colored outfit under the costume (blue might be nice to look like water) and you are ready to charm everyone with your starfish cuteness!

Difficulty Level: easy!

Crafting time: 1/2 hour to an hour, depending on how fast your paint and glue dries. Maybe even a whole day if you are using slow-drying glue.

*Always spray paint outside or in a very well-ventilated area. Use non-toxic (low VOC) spray paint or ask your paint store to put no- or low-VOC paint into a spray can for you.

**Box cutters are NOT for children. Have a responsible adult use any sharp cutting devices.

***Serrated knives are NOT for children (and not even some adults!). Have a responsible adult use any sharp cutting devices.

Check out More in our Under-the-Sea Costume Series:

About the Author

Brenda Ponnay

Brenda Ponnay is an author and illustrator who loves to craft and make big messes when she’s not working on her books. Whether it’s painting, baking, drawing, making castles out of card...

Brenda Ponnay is an author and illustrator who loves to craft and make big messes when she’s not working on her books. Whether it’s painting, baking, drawing, making castles out of cardboard boxes or just doing the laundry with flair, Brenda Ponnay has learned that what really makes her happy is being creative every single day.

You can read about all her crazy adventures on her personal blog: Secret Agent Josephine.

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lovely idea.. thanks – not too difficult for someone like who is not really good with craft:)


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