I knew Holographic and Iridescent was going to be a thing when, while on vacation in New York City with my kids earlier this summer, I saw a college-age girl in the look head-to-toe. Where exactly was I when, amazed at this fashion statement, I immediately snuck an iPhone picture to text Kyle? The Museum of Natural History, I kid you not. I am not suggesting head-to-toe holographic as a try-this-at-home or museum look, but how about a clutch for a night out, or a fanny pack as something fun to wear to the park with your kids or dog? Do …