Matthew: So, I have been making mermaid tails for over 10 years. One of the major questions I get is, "Who's buying these tails?" It's mainly models, hobbyists, performers. I do a lot of music ...

NCIS star Katrina Law, who plays the brave and clever Jessica Knight on the series, just shared a look at a recent tropical vacation—including a surprising transformation into a sultry mermaid. Law ...