Oh My Cute! 55+ Pottery Barn Kids' Costumes and Bags That'll Make For a Happy Halloween

The colors in this Kids Light Up Cosmic Sparkle Astronaut Costume ($99) are so bright and fun!

This Kids Light Up Mummy Costume ($99) has LED lights that turn on and off for extra effect.

This adorable green Kids Adaptive Dino Costume Accessory Set ($59) comes with a dino tail, headpiece, and wings, which can all be used for dress up yearround.

This Kids Doctor Costume ($59) makes for fun dress up on Oct. 31 and beyond!

Oh, boy! This Kids Disney Mickey Mouse Costume ($99) is too cute — check out the yellow booties!

This Kids Adaptive Unicorn Costume Accessory Set ($59) comes with wings, a fluffy rainbow tail, and a headband complete with mane and horn. So cute!

This Kids Light Up Skeleton Tutu Costume ($99) has LED lights in the skirt to glow through nighttime trick-or-treating.

How cute is the dragon breath detail on this Kid Light Up Dragon Cape & Mask Costume Accessory Set ($69)?

This Kids Giraffe Tutu Halloween Costume ($89) may be the cutest animal costume we've ever seen!

Your child can transform into a brave knight with this Knight Everyday Playset ($50).

Just wait until you see how spooky this Kids Glow-in-the-Dark Witch Halloween Costume ($89) looks at night.

Turn your child into a glowing jack-o'-lantern this year with this Kids Glow-in-the-Dark Pumpkin Halloween Costume ($69).

The Dragon Costume ($89) comes with a full-length jumpsuit and matching hat so they can fire-breathe their way through the night.

Any dinosaur-obsessed kid will enjoy this T-Rex Treat Bag ($20).

This Light Up Ghost Treat Bag ($25) is the perfect finishing touch to a spooky costume.

Personalize this cute Pumpkin Pillowcase Treat Bag ($17) with their name.

The spider on this Spider Web Treat Bag ($25) lights up for an extra spooky surprise.

Turn your kid into Disney's ice queen with this Kids Disney Frozen Elsa Halloween Costume ($99).

The Kids Glow-in-the-Dark Skeleton Halloween Costume ($89) looks so comfortable, they'll probably want to sleep in it.

This Kids PAW Patrol Marshall Halloween Costume ($89) is super cute.

They'll take an imaginary exploration into space with the Kids Light Up Astronaut Halloween Costume ($99).

Be careful, the Glow-in-the-Dark Bat Felt Treat Bag ($20) might just fly away.

They'll feel like they're going to the ball in this Kids Light Up Disney Princess Cinderella Halloween Costume ($129).

The PAW Patrol Skye Treat Bag ($20) will make their Halloween costume even more fun.

The Kids Pink Superhero Cape Set ($59) is here to save the day.

The scale-like detailing on this Kids Red Dragon Halloween Costume ($89) is so cool.

Add a touch of whimsy to their Halloween with this Light Up Unicorn Treat Bag ($25).

If they're a Frozen fan, they'll love this Kids Disney Frozen Anna Halloween Costume ($99).

They won't need candy in this Kids Dalmatian Tutu Halloween Costume ($89), just biscuits.

How pretty are the colors in this Kids Light Up Rainbow Fairy Halloween Costume ($99)?

This Glow in the Dark Kitty Glitter Felt Treat Bag ($20) is the cat's meow.

Make candy all the more sweet with this Disney Winnie the Pooh Hunny Treat Bag ($20).

We adore the orange eyes on this Spider Treat Bag ($20).

This Glow-in-the-Dark Skull Felt Treat Bag ($20) looks even scarier at night.

We couldn't think of a better place to store your candy than this Rocket Ship Puffy Treat Bag ($20).

You can monogram this Kids Blue Superhero Cape Set ($59) with their name — how cool!

They'll float all around the neighborhood in this Kids Light Up Ghost Tutu Halloween Costume ($69).

It doesn't get much cuter than this Kids Pink Butterfly Fairy Halloween Costume ($99).

Make their dino dreams come true with this Kids Light Up Stegosaurus Halloween Costume ($99).

Illuminate the night with the Light Up Rainbow Tulle Treat Bag ($25).

How comfortable does this Kids Glow-in-the-Dark Puffy Ghost Halloween Costume ($69) look?

Dress them up as their favorite Paw Patrol character with this Kids PAW Patrol Skye Halloween Costume ($89).

This Bat Puffy Treat Bag ($20) is surprisingly cute.

Prepare for blast off with this Kids Light Up 3D Rocket Halloween Costume ($89).

This Kids Light Up Disney Princess Belle Halloween Costume ($51, originally $129) will definitely keep your Beauty and the Beast-lover warm.

Their treats will be held safe and sound in this Light Up Pumpkin Treat Bag ($25).

If they want to be a firefighter when they grow up, this Kids Firefighter Halloween Costume ($59) would be so fun for Halloween and year round dress up.

The glowing face on this Glow-in-the-Dark Pumpkin Felt Treat Bag ($20) is so spooky.

Take a closer look at the Kids Light Up Pterodactyl Halloween Costume ($99), there are so many great details.

How sweet is this Light Up Shooting Star Tulle Treat Bag ($25)?

The scales on this Kids Light Up T-Rex Halloween Costume ($99) are so fun.

They'll live out their mythical dreams in this Kids Light Up Unicorn Tutu Halloween Costume ($99).

This Kids Black Cat Halloween Costume ($69) makes the purrrr-fect All Hallows Eve outfit.

This Blush Tulle Crown Treat Bag ($25) is perfect for any princess-lover.

The Kids Wonder Woman Halloween Costume ($89) includes a dress, headband, and wrist covers.

They'll want to keep this Gold Metallic Tulle Treat Bag ($25) out year-long just to play with.

Hello, pumpkin! The tulle detail on this Kids Light Up Pumpkin Tutu Halloween Costume ($69) is so sweet.

They'll bloom into a beautiful butterfly in the Kids Lavender Butterfly Fairy Halloween Costume ($99).

Collecting candy will be quick and speedy in this Kids Disney and Pixar Cars Lightning McQueen Halloween Costume ($79).