The skirt is actually from Macy's. I checked the brand, and it is BCX. It is a bit of a hi-lo style, so the back really looked like "fins" to me. I was originally planning to get shorts for my Ariel, but I saw that skirt and knew it would be perfect. I'm bummed that I forgot to get a full-body picture so that you can see all the detail in the skirt. I'll probably wear it again for our August trip, and I will try to remember to take better pictures. Editing to add a link to the skirt
http://www1.macys.com/shop/product/bcx-belted-high-low-skirt?ID=1445582&CategoryID=53640&LinkType=#fn=DEPARTMENT_TYPE%3DSkirts%26sp%3D1%26spc%3D10%26ruleId%3D25%26slotId%3D5
For others who've done DB'ing, do people generally recognize and comment on your outfits? I had one nice woman tell my toddler, "I see that you are the Pirate Fairy and your mama is the Little Mermaid." I was so happy that somebody noticed. The woman said she noticed right away, but that she normally doesn't comment on adult outfits, just kids. So, now I try to compliment anyone I see who is DB'ing.