Our Costumes Starting with M collection is full of magical, mischievous, and memorable looks that work for every event.
Bring fairytales to life as a Mermaid, step into fantasy as Maleficent, or be adventurous as Mario. Choose a Medieval Monk or a Musketeer for history themes, or go monstrous as a Mummy or Monster. Kids will enjoy Minions costumes, while film buffs might prefer Men in Black.
These M costumes suit Halloween, school dress-up days, and alphabet parties. They’re fantastic for groups too—Mario and Luigi duos, Musketeer trios, or a mix of Monsters and Mummies. Available for all ages, you’ll find something magical for everyone.
To expand your choices further, explore our complete A–Z fancy dress category and see costumes for every letter.
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Mermaid Starfish Hairclip Costume Accessory -
Mouse Set With Sound -
Mouse Nose -
Mouse Mask With Sound -
Kids Victorian Maid Costume -
Kids Mermaid Princess Costume -
Kids Zombie Mermaid Costume -
Kids Minion Bob Costume -
Kids Pink Mermaid Costume -
Maid Marion Kids Costume -
Victorian Maid Kids Costume -
Kids Mermaid Costume -
Kids Mad Scientist Costume -
Kids Deluxe Mermaid Princess Costume -
Monster High Frankie Stein Kids Costume -
Monster High Clawdeen Wolf Kids Costume -
Monster High Frankie Stein Adult Costume -
Monster High Draculaura Kids Costume -
Monster High Draculaura Adult Costume -
Monster High Clawdeen Wolf Deluxe Kids Costume -
Skeleton Pirate Maiden Girls Costume -
Minnie Mouse Womens Tutu -
Sassy Mad Hatter Costume, Dress with Attached -
Fever Monster Mummy Bride Costume
