sebastian costume adult - Google Search
flounder costume adult - Google Search
Little mermaid "flounder" inspired makeup.
Disney's Little Mermaid Makeup Tutorial !!!
Ursula from the Little Mermaid. I want the costume to be so lavish that I regret wearing it.
Tim Federle (author of "Better Nate than Ever" and "Five, Six, Seven, Nate" and former Broadway performer) in costume for The Little Mermaid in 2008 (photo courtesy Disney)
Prince Eric Costume from Little Mermaid all you need is a white shirt, red ribbon, workman's navy trousers and gum boots.
The Little Mermaid - Sebastian
DIY ursula costume - Google Search Some thrift store shopping, and a long couple of nights with the sewing machine