The Perry The Platypus Costume

[2 Nov 2009 | By | 66 Comment(s) | 89,601 views ]

Perry the Platypus homemade costume

Updated!!– New photos and instructions here for making it even better with EYES!!

Tutorial: How to make the Perry the Platypus Costume perry

Here are some basic instructions, pictures follow.

At it’s simplest, you can do this with a green hoodie and sweatpants. Unfortunately for me, I couldn’t find a green hoodie, so I made a simple one out of fleece, by tracing around a current sweatshirt. (see pics below) I added a few pieces of ‘hair’ with black embroidery floss.
(In the updated 2010 version I add a drawstring around the front of the hoodie, by sewing a simple hem, and running a lace through it. This provides a better shape to the head)

The Duckbill was very easy! 2 pieces of craftfoam, cut into a bill shape. The bottom piece is slightly smaller than the top piece. I used a hole punch to make breathing holes on the bottom, and to make the holes for the elastic cording. Just tie the pieces together, and they go nicely over the nose, or even over the nose and chin (which is how The Boy liked to wear his).

Very simple. A webbed foot cut from craft foam. Then I slid a scrap piece of foam through the shoe lace on his shoe. I placed duct tape behind it (see pics) and pressed the foot shape on top!

The tail totally made the outfit. I cut the tail shape out of brown fleece, and sewed it together, leaving an opening at the top. I then stuff it VERY lightly with a little fiber fill. Then use pins to mark the tail into equal sections, several inches apart (see pics). Then sew in a zigzag down the tail. At the end, repeat the process in reverse, making the quilted x’s. Attach the tail to the bottom of the hoodie.

Um, is a fedora.

Eyes (New for 2010!): Updated!!– New photos and instructions here for making it even better with EYES!!

Here are some other pictures, and some shots of “the making of Agent P”! Click to see big/slideshow.

I’ll have a few pics of the halloween party and other Halloween links as a final wrap up of Halloween 2009 tomorrow!

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66 Comment(s) »

  • Rachel [] :

    I love it! I was so excited to see that you did this. I told my sister about it this weekend, and she said, “Man! I wish one of my kids wanted to be Agent P!” Mine did, when they saw your pictures, but we were too late then. (and I have a general no-making-costumes rule ;)

    So so so fantastic!

  • Rachel [] :

    And did you have any kind of device to make his hilarious teeth-clacking noise? ;)

  • Karen [] :

    2 thumbs way up from my girls! Shea requests an adult-sized version to wear next year.

  • Dot [] (author) :

    Rachel -heh, glad ya liked it!

    No, but I’m sure my husband would have figured out a device had I given him time!

    Karen – Easy enough to too, just have her start looking for a green hoodie!

  • Diana Evans [] :

    This is fantastic!!! I have been seeing these guys everywhere…from books to cartoons!!! great work!!!

  • Eric Barclay [] :

    Excellent! My kids love Phineas and Ferb.

  • Dot [] (author) :

    looks fabulous!

  • Nina [] :

    My daughter was begging for a Perry costume to play dress-up and your tutorial was a lifesaver. I couldn’t find any sweats in the right color, so I riffed on your idea and made a one piece body (that’s what she wanted) for her using a sweatshirt and sweatpants of hers for the pattern. We cut a line down the back so she could get in it, and used strips of matching fleece to make two ties to hold it closed. We followed your directions for the beak, feet, and tail, and it came out fabulously. She loves it and wears it as often as she can. So thank you for making my job so much easier.

  • Dot [] (author) :

    So glad it was a help! Agent P is the best :)

  • Nicole [] :

    Thank you so much for providing the pictures and instructions. The costume looks awesome! My son wants to the Agent P for Halloween this year and I have been racking my brain about making the costume…I was thinking about going boxy like Candace’s platypus costume and cover it with green felt (can you imagine how much green felt I would need to cover a box or two to fit over a 5 year old). Yours looks so much easier! Thanks again!

  • Dot [] (author) :

    So glad it was helpful! Would love to see pics of the completed costume :)

  • Manuel García Melgar [] (elsewhere) discussed this :

    wow! via @caugustovaldes

  • Katie Dunneback [] (elsewhere) discussed this :

    @angelajames thought of you and b:

  • 辣妹令人心煩 [] (elsewhere) discussed this :

    @OOBE 自己作一件吧~

  • Charissa [] :

    Too cute!! Great ‘how to’ photos too!

    I love DIY halloween costumes

  • Charissa [] :

    Sorry about the comment above guys… Accidentally copied some code in there…

    Was just trying to say how cute this costume is and how much i love DIY halloween costumes!! :D It’s so fun to make your own costume :)

    One year I was Play-Doh my dad made the costume for me out of cardboard and styrofoam :) haha The kids loved it :)

  • Mad for the Mouse [] (elsewhere) discussed this :

    Found THE cutest costume for 3yo son – don't you love it?? #agentp #perrytheplatypus

  • Mad for the Mouse [] (elsewhere) discussed this :

    Found the cutest Agent P costume – super easy to make, too!

  • Kyle [] (elsewhere) discussed this :

    RT @MadfortheMouse: Found THE cutest costume for 3yo son – don't you love it?? #agentp #perrytheplatypus

  • Holly Siwek [] (elsewhere) discussed this :


  • Simone Rodriguez [] :

    Thank you so much for sharing. I was struggling how to attach the feet to his sneakers.. What an awesome Idea. My son will be so happy that I could make this for him.

  • Jill [] :

    Thank you, Thank you, THANK YOU!!!

    Our green sweats just came in the mail yesterday, so I need to get going on the rest of the costume. My son LOVED the pics of your son in his costume, and I can’t wait to see how excited he is on Halloween.

  • Dot [] (author) :

    Awesome! Can’t wait to see how it comes out!

  • Elaine [] :

    Thank you, this is fabulous!!! I am soooo doing this for my daughter! Where do you find a kid-sized fedora?

  • Jennifr [] :

    I just wanted to thank you so much for this! My 4 year old adores Agent P and you saved me with these awesome instructions! I wish I could attach a photo. It was perfect.

  • Dot [] (author) :

    Email me a photo, I’m collecting up reader creations… dot[at]dabbled[dot]org

  • georgiaa [] :

    DUDE THIS IS AWESOMEEE. i love phineas and ferb, and wanted to dress up as perry for my friends superhero party (i class him as in league with superheros). i was mega stuck on what to do and know i have so many ideass!! :D

  • má r. celly [] (elsewhere) discussed this :


  • shannon walsh [] (elsewhere) discussed this :

    @_NickSullivan oh wait no, its here:

  • メスゴリラ ✂ .․ .‧☁ [] (elsewhere) discussed this :

    @nuca_ata カモノハシとビーバーのキメラコスプレ発見しました

  • nuca ata [] (elsewhere) discussed this :

    やっぱ一緒にしますよね RT @milligramme: @nuca_ata カモノハシとビーバーのキメラコスプレ発見しました

  • Heather [] :

    Thanks for the great idea, I played with it a bit, making the tail orange and more triangular shaped like the cartoon character. I also pulled a muppets and painted ping pong balls for the eyes. Looks amazing.

  • Dot [] (author) :

    Send me a photo, or post a photo on our facebook page :)

  • Patty [] :

    I just made one for my little guy ~ posted the pictures on my blog at

    Thanks for the motivation and instructions. I couldn’t have done this without your help!

  • Ryan [] :

    Thank you veeeery much for those instructions; this site was a godsend!

    Here’s me @ work on Halloween…

    Good times :D

  • Ryan [] :

    …also, I won our faculty’s costume contest :D

  • Edie [] :

    Thank you for saving my Halloween! My son wanted to be Perry for 6 months leading up to Halloween. I have very limited creative ability but your pattern and pictures were SO helpful! Thank you for your creativity!

  • Leslie Marquez [] :

    This is so cute!! I have a three year old son who is going to flip in October when he gets to be perry. He loves perry!!

  • Vicky [] :

    Thanks for the instructions. I can’t believe Disney is not selling Perry costumes. You are a Halloween saver. My son is so excited to wear it.

  • Anonymous [] :

    Great idea. This getup looks like that of a duck. It also looks very cute. I like the tail the most.

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