Last-Minute Adorable Halloween Baby Costumes: 3 Cute Ideas

Halloween is only days away, and I couldn’t resist sharing a few last-minute costume ideas—especially since it’s Hayes’ first Halloween. I put together three simple, adorable DIY costumes for babies and toddlers in partnership with Uber. They’re quick to assemble, customizable for older kids or adults, and very baby-friendly.

Read on for three easy-to-make baby Halloween costumes: a clown, a mouse, and a moon-and-stars outfit.

Three Last Minute Halloween Costumes for Babies

First up is a DIY clown costume. I know some adults find clowns unsettling, but baby clowns are undeniably cute. We wore this costume to a neighborhood Halloween event and even used the Pickup Messages feature in the Uber app to tell our driver, “I’ll be the one holding the baby clown.” It was a silly, useful identifier among a crowd of costumed little ones.

As a one-car family, I use Uber often—whether I need to meet friends, grab lunch, or head to a local party without worrying about parking. Uber also helped me pick up craft supplies for these costumes. Here’s how to make each look.

DIY baby clown costume

DIY Costume for Babies #1: Clown

This clown costume is a nostalgic nod to my own childhood costume my mom made. For a baby-sized clown, gather a playful outfit, a pom-pom maker (or cardboard circles), yarn, scrap fabric, scissors, and a sewing machine or needle and thread.

Make three small-to-medium pom poms. Sew two pom poms to the front of the pants or the overall section. For the ruffled collar, adjust dimensions to your child’s size. For a very small baby, my collar had an 8-inch outer circle with a 4-inch center cutout for the neck, and a second 9-inch outer circle with a 4-inch center. Cut a slit to open the circle, sew a 1/4-inch channel around the neck, and pull a string through using a safety pin. Gather and tie the string to create the ruffle, then tack the two collar layers together at the sides.

For the hat, use a sturdy fabric or layer heavyweight canvas with a lighter fabric. Cut two triangles about 5 inches per side, sew along two sides, leaving the base open. Attach two ties to the base so the hat can be secured under the chin, and sew a pom pom to the tip. Quick, festive, and easy to wear.

DIY baby mouse costume

DIY Costume for Babies #2: Mouse

The mouse costume is the simplest of the three and can be adapted into many different animals by changing colors and ear shapes. You’ll need a white onesie, a white hat or bonnet, pink scrap fabric, heat-bond fabric tape, an iron, and a short length of pink yarn.

Cut a light-pink oval and adhere it to the front of the onesie using heat-bond tape and an iron, following the tape’s instructions. For ears, either sew or glue pink ear inserts into a hat that already has ears, or craft ears from fabric and attach them to a plain baby hat. Finish by securing a 6–8 inch length of pink yarn to the back of the onesie for a tail. That’s it: a sweet, comfortable mouse costume ready in minutes.

DIY baby moon and stars costume

DIY Costume for Babies #3: Moon and Stars

Because Hayes’ middle name is Moon, I couldn’t resist making a moon-and-stars costume. For this look you’ll need a plain onesie, yellow fabric, polyester fiberfill (pillow stuffing), scissors, and sewing supplies.

Trace a crescent moon and a star on fabric, double the fabric, and cut about 1/4 inch outside the traced lines so each shape has two identical pieces. Pin each pair together and sew around the edges, leaving a one-inch opening to insert the stuffing. Turn right-side out, fill with fiberfill, and hand-sew the opening closed with an invisible stitch. Sew the moon and star onto a solid-colored onesie; when Halloween is done you can remove them with a seam ripper and keep the shapes as room decorations or keepsakes.

Baby in clown costume

Baby in moon costume

Baby in mouse costume

Photography Amelia Lawrence

Those are the three DIY Halloween costumes I made for Hayes this year. Which one is your favorite? I’d love your help deciding which outfit to choose for the holiday!

This post was created in partnership with Uber. Thank you for supporting the brands that help keep Paper & Stitch running.