Blue Costumes for Kids on Sale up to 90% Off: Poshmark

Like New Genie Princess Purple & blue with Sparkly Golden Costume Kids

$14 $777

2-piece Carters baby blue monster costume boys or girls, size 6-9 months

$35

6-9 months

Kids 5T Disney Halloween Costume Cinderella Inspired Dress

$14

OS (Girl)

Kids Girls 4/5T Halloween Costume Supergirl Red & Blue Dress w/ Cape

$14

OS (Girl)

iEFiEL- Girls Light Blue Lace Halter Dance Costume with Sheer Skirt - Size 8

$30

girls size 8

Medline Kids Hospital Scrubs Size xs 4T? Aqua/Grey V-neck Short Sleeve Halloween

$20 $804

xs (4)

Despicable Me Minion Dave Custom by Rubie's Size Small 4-6

$26 $36

SMALL

Sesame Street Cookie Monster Costume, 2T

$10

Royal Blue Kids Dance Tutu with Arm Tops

$12 $50

Kids Velvet Princess Cape Snowflake Fancy Cloak Dress Up Costume

$67 $94

Various sizes

Disney 4-6X Princess Little Mermaid Ariel Dress-Up Reverse SEQUINS

$15

4-6x

NIP Disney Baby Cinderella‎ Costume

$20 $25

6-12 months

Fantastic Four The Thing Kids Blue Costume with Mask Sz 6/7

$25

6/7

Disney Cruise Line Sailor Captain Blue Jacket Size Youth XXL Or Prince

$48

Rubies Spider-Man Costume Child Large 12-14 Red Marvel Ultimate Jumpsuit‎ Mask

$23

L (12-14)

Mystic Water Mermaid Costume Size 2-3T

$15 $99

2-3T

Spirit Halloween Paw Patrol Chase Costume Deluxe 5T 6T Jumpsuit Toddler

$27

5T/6T

🎉GREAT condition “My Little Pony” Rainbow Costume - Blue, Red, Yellow

$10 $20

NWT. RUBIES DC Superman Kids Superhero Costume

$35

Medium 7-8

Disney Princess Style Light Blue Lace Ball Gown Dress Kids Size 6-7Y 120cm

$24

6 (Girls)

Disney Parks Girls Snow White Gold with Cape Costume Halloween Dress Up Dress 13

$45 $99

US 13

Game Genshin Impact Primogem Cosplay Costumes

$40 $165

One size fits all

Weissman Girls Dance Leotard With Tutu, Size IC (7/8)

$11

7/8

Dance costume- leotard tutu headpiece neon rainbow leopard

$14 $75

OS (Girl)

Girls Blue White Snowflake Dance Costume Metallic Foil Skirted Leotard Size 8

$17

8 (Girls)

Kids Doctor Costume with White Coat

$20

S. 4/7

Girls 3 piece Dance Costume Fly Me To The Moon Size LC Jazz Tap Ballet Lyrical

$75 $250

Large Child

DC Comics Superman Halloween Light Up Costume Jumpsuit Size 6

$27 $40

US 6

Brittany Deluxe Butterfly Princess Costume

$24 $777

7-10

Costume Gallery dance costume

$22

Kids M

UFO Kids Costume- does not light up

$45 $89

Small

Weissman dance costume

$20

Kids XL

Marvel Spider-Man Kids Padded Jumpsuit & Mask Costume Jazwares Small 6/7 Red

$18

S (6/7)

Capezio Blue Velvety Ice Skating Dress Costume Strappy Sleeveless Embellished M

$15

Medium

Wonder Woman Infant Costume - Red, Blue, Gold

$30

0-6 months

Pottery Barn UFO kids Costume Light Up NWT

$79 $89

Various sizes

NWT Tolo Rabbit Minions Costume Hooded Plush Full Zip Sz 18-24 months (90/52)

$18

18-24 months

Super Mario Kids Costume - Red and Blue missed Mustache Sale As Ia

$15

Size medium 8-10

Superman Cape One Size Fits All, EUC

$15 $30

OS (Boy)

Revolution Shiny Blue and Black Dance Costume with Puff Sleeves

$30

Small Adult

Green Alien Astronaut Light-Up Costume - PBK

$79 $99

🌈✨“Rainbow High Vibes Only!” Amaya Costume XS 3T-4T✨🌈

$16 $36

XS (3T-4T)

Pirate costume girls adolescent large Shipwreck Cutie and sword costume read

$25

Juniors large

GK Elite OEC Cheerleading Uniform Set Child Large Red Metallic Rhinestone Cheer

$65

Large

NEW Spooktacular Creations Girl Police Costume M 8-10 Years- Blue and Black

$25 $46

Girls (M)

Kids Police Officer Costume

$30

Small

Kids Supergirl Costume

$15 $50

OS (Girl)

Disney Parks Merida Brave Princess Costume Dress Girls Size XS Blue‎ Gold Play

$45

Kids Blue Costumes