Celebrate Dia De Los Muertos or Halloween with Kids Day of the Dead Mermaid Costume . This pretty yet spooky costume mixes florals with a bit of goth chic, combining for the ultimate girls Halloween costume. The skeletal tail on this mermaid outfit along with the rib cage and bright colours makes for a more fashionable look than a scary one this year. Try out some Day of the Dead sugar skull makeup on your little girl and send her off to her Halloween party or out trick-or-treating to gain a whole bucket full of sweets! Discover more Day of the Dead costumes here.