Skip to main content

DIY Adult Baby Costume Ideas

Susan believes that playing dress-up is one of the best parts of being a kid. Her creative costume ideas help bring out the kid in everyone!

Tips and tricks for your best Halloween adult baby costume!

Tips and tricks for your best Halloween adult baby costume!

How to Dress Like a Baby for Halloween

An adult baby costume can be loads of fun! You can buy a complete costume ready-made, or you can make your own with our suggestions, from bonnet to booties. You'll be the hit of your favorite Halloween party!

Here, I give you lots of ideas about how to dress up as a baby, as well as how to act to really pull off the transformation. Don't miss the accessories to make your "look" complete!

"Crawl" down the page and have fun learning how to transform yourself into the cutest (and biggest) toddler you and your Halloween party-going friends have ever seen!

Baby Costume Accessories Checklist

  • Long underwear with cotton batting "baby fat"
  • An adult-sized diaper with a huge safety pin in front (or ruffly baby bloomers)
  • A big pacifier (or sippy cup or extra-large baby bottle)
  • A large bib
  • A baby blanket
  • A baby bonnet
  • Simple white tennis shoes, knitted "booties," or cute Mary Jane shoes

Start With Nice, Soft Baby Skin

Otherwise known as long underwear. You may already have a pair in your dresser drawer. Or try the local dollar store and pick up a cheap pair.

If you're really feeling creative, buy "long johns" a little bit large and stuff them with cotton batting here and there for some well-placed "baby fat," which will help disguise your shape and, therefore, your identity. Or buy your regular size and let them do double duty in cold weather. This is also a great idea if you'll be out and about on a chilly night. (Trick or treat!)

Add One Extra-Large Diaper With Pin

You could fashion your own costume diaper, but the huge pin really makes a difference!

If you have time to order, here is a three-piece baby costume accessory set—a diaper, a giant pin, and a big pacifier. If you need to make it yourself, you'll be missing out on the extra-large pin and pacifier, but use the biggest safety pin you can find at the drug or dollar store or Walmart and choose the most outlandish pacifier you can find, or settle for a cute little binky.

Then again, "extreme" accessories make for a lot of fun and a lot of conversation. Remember, your goal is to be the hit of the party. Babies love to be the center of attention!

Snuggle Up With a Baby Blanket

Choose a good-sized blanket to snuggle, or think "Linus" and drag it behind you when you walk. A fleece throw (you'll find these in the bedding department of your local discount store) is a great size for an adult baby and can be used long after the costume party is over.

Add One Very Large Bib

An adult-size bib is a perfect accessory. If you're shopping for a bib in the children's department, just make sure the ties are long enough to fit around your neck.

Wear the bib over a simple t-shirt, white or any color you choose. Pink or blue, of course, are the perfect colors for this component of your costume. Or choose a fun, childish print.

A bib is something else that can be used after Halloween. (Spaghetti, anyone?)

Don't Forget Baby Booties!

One of the easiest ways to make "booties" for your baby costume is to put on a plain white pair of tennis shoes and then add a big pair of knitted slippers over the top. Look for pink or blue slippers, or choose a crazy pattern—the more outlandish, the better.

Remember, "extreme" is your friend when designing a winning costume. A big baby with extra-large "booties" is definitely extreme and will stand out at a costume party.

Did someone say "extreme"? This pair knows how to have fun!

Did someone say "extreme"? This pair knows how to have fun!

Baby Needs a Bonnet

A big bonnet meant for a pioneer costume (maybe next year!) or to use in the garden will work. Look for something with a big brim, which is a great way to hide your face, adding to the disguise.

Don't have a baby bonnet that's big enough? If you're really in a DIY mood, check out this illustrated article showing how to make a bonnet from a simple straw hat. This one makes an awesome-looking bonnet from a cereal box and duct tape. Cover it with some gingham, and you're done! I'm not kidding; it's a great project!

If you have time and a sewing machine, watch the video below, an excellent video tutorial showing how to make a prairie bonnet. Choose gingham or a colorful print to top off your baby costume in real style.

As with all do-it-yourself costumes, think outside the box, or in this case, the baby bed, and add some creativity and a little imagination to come up with a costume that's totally unique.

How to Sew a Bonnet: Video Tutorial

Put Them All Together They Spell B-A-B-Y

Use several of the components and accessories above, and you'll be the hit of the party!

Secret for the Best Baby Costume

When you arrive at the costume party, sit down on the floor, put your thumb in your mouth, cuddle up your baby blanket and pacifier, and don't say a word. Keep your face hidden behind your bonnet and stay in character as much as you can. Being down low will make it harder for people to identify you, which is really fun at a costume party. Of course, if everyone ignores you, you can always cry or throw a nice temper tantrum!

Have fun!

© 2010 Susan Deppner

Comments: Would You Wear a Baby Costume? Store-bought or Homemade?

James Conlan on October 06, 2018:

I already own cotton diapers , a huge blue baby bottle, a huge diaper pin and a onesie with snap bottoms, the only thing I need for the halloween party is a Mommy or a nurse to change me!

Susan Deppner (author) from Arkansas USA on October 19, 2014:

I think "daring" and "different" definitely apply here, Au Fait! :) Thanks so much for stopping by!

C E Clark from North Texas on October 18, 2014:

This is definitely a different and unusual costume possibility for the daring who want something different, with Halloween just around the corner.

Susan Deppner (author) from Arkansas USA on September 27, 2014:

Poetryman6969, now that's a thought - and a picture that will probably never leave my mind. Thanks for the comment!

poetryman6969 on September 26, 2014:

We need to have one for each of the politicians in Washington DC

Susan Deppner (author) from Arkansas USA on July 25, 2014:

@favored: That's so funny! I hope you have pictures but even if you don't, what a great family story! Thanks for sharing that, favored1!

Fay Favored from USA on July 25, 2014:

Oh my I've stepped into our family photo album! My Dad was famous for dressing up as a baby and crashing my sister's baby parties. So funny there are real costumes for this. You wouldn't believe what he did!

Susan Deppner (author) from Arkansas USA on August 04, 2013:

@studyaids: LOL Love that! Thanks for the visit, studyaids!

Steve Jones from Birmingham UK on August 04, 2013:

Weird and wonderful lens

Susan Deppner (author) from Arkansas USA on July 27, 2013:

@OhMe: When my mom dressed up as a baby, she definitely was the hit of the party!

Nancy Tate Hellams from Pendleton, SC on July 26, 2013:

The Adult Baby Costume really looks like fun and would be a big hit at a Halloween Party.

Susan Deppner (author) from Arkansas USA on June 06, 2013:

@anonymous: Thank you!

anonymous on June 06, 2013:


anonymous on February 01, 2013:

Dressing up as a baby for halloween is a great idea im going to try this

miaponzo on January 18, 2013:

I think baby costumes are hilarious!!!

onyesvic on November 01, 2012:

I'll have to try

Susan Deppner (author) from Arkansas USA on October 23, 2012:

@therealstig86: Take pictures if you do!

therealstig86 on October 23, 2012:

Me and my friends are always looking for party theme ideas. This is one we haven't tried......yet !

Susan Deppner (author) from Arkansas USA on October 22, 2012:

@Heather426: Easy to pull together a costume, too, especially if you happen to have a baby blanket and bottle lying around the house!

Heather Burns from Wexford, Ireland on October 22, 2012:

I always make my own costumes, that's part of the fun. I could be a baby , that would be funny!

Susan Deppner (author) from Arkansas USA on October 15, 2012:

@pawpaw911: I'm with you!

pawpaw911 on October 15, 2012:

I don't think I could wear one, but I have to admit, they are pretty funny.

dellgirl on October 10, 2012:

Yes! Love it, this is too too funny!

Jogalog on September 03, 2012:

I wouldfeel so embarassed in this outfit - I'd have to curl up in a ball and try and hide my face!

malena10 on July 25, 2012:

Hehehe, this lens make me laugh so much, great! ;)

Susan Deppner (author) from Arkansas USA on June 26, 2012:

@Millionairemomma: It takes a lot of nerve and a certain personality to really pull this off. My mother has both! :)

Millionairemomma on June 25, 2012:

These are wild. I don't know if I'd have the guts to pull this off but it was fun to look at.

Brandi from Maryland on March 07, 2012:

What a very fun Halloween costume! I don't like the babydoll mask, me the creeps! :) Blessed by a brand new SquidAngel!

top101 on March 06, 2012:

This is funny and cute.

fullofshoes on February 09, 2012:

these are hilarious. fun lens!

Dancing Cowgirl Design from Texas on January 08, 2012:

Fun ready made costumes. I had a homemade one before and it was lots of fun!

JoyfulReviewer on October 16, 2011:

Thanks for the fun costume lens!

raffael lm on August 02, 2011:

I love this cool and funny adult costumes lens .. dear lady Susan :D

Oliversbabycarecouk on February 11, 2011:

These look awsome, i know what ill be getting for next halloween then.

KimGiancaterino on October 26, 2010:

What a fun idea ... definitely a standout costume. The oversized baby bottle is great. Happy Halloween!

bdkz on October 26, 2010:

Congratulations! You've been SquidBoo Blasted. Happy Halloween!

Susan Deppner (author) from Arkansas USA on October 07, 2010:

@Joan4: I'd love it if people like this idea and put together a baby costume!

Susan Deppner (author) from Arkansas USA on October 07, 2010:

@tandemonimom lm: It does come across pretty creepy here, I agree. My mom was a cute baby when she dressed up this way. Unfortunately, I don't have a picture.

Susan Deppner (author) from Arkansas USA on October 07, 2010:

@Dianne Loomos: Just what I need for this lens! I'd love to see it!

Susan Deppner (author) from Arkansas USA on October 07, 2010:

@TreasuresBrenda: Oh, Brenda! That hurt! LOL Uh, no. Not mine.

Joan4 on October 07, 2010:

oh so funny, Susan! and yes, it did remind me of Don's tutu! Wonder how many adults will dress up as a baby as a result of this page? :)

Treasures By Brenda from Canada on October 07, 2010:

That's one adorable baby at the top of this of yours?

Dianne Loomos on October 07, 2010:

The year after I made Don the tutu costume, we did a baby costume. I'll have to see if I can dig up a picture.

tandemonimom lm on October 07, 2010:

LOL - kinda creepy!