DIY Little Mermaid Costume Black Ariel Inspiration While everyone else is getting into the spooky spirit of Halloween, my daughter is swimming against the tide (pun intended!) and rocking a beautiful mermaid costume! Thank you @mermaids_of_arabia for this Amazon.com: Spirit Halloween Adult Ariel Costume The Little Mermaid, Women, Size ADULT SMALL, Multicolor : Clothing, Shoes & Jewelry DIY Mermaid Costume Go French Yourself Amazon.com: Spirit Halloween Adult Ariel Costume Disney Princess, Women, Size ADULT MEDIUM, Multicolor : Clothing, Shoes & Jewelry