Popsugar Celebrity Halloween Costumes 2018 Prince Harry and Meghan Markle Halloween Costume Ideas 3 Ways to Channel Prince Harry and Meghan Markle's Iconic Royal Wedding This Halloween 2 September 2018 by Victoria Messina View On One Page Photo 27 of 34 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 27 AQUA Lace-Back Mermaid Gown ($179, originally $298) AQUA Lace-Back Mermaid Gown $179 from bloomingdales.com Buy Now Previous Next Start Slideshow Halloween Costumes 2018Meghan MarkleThe British RoyalsHalloweenPrince Harry