15 Sea-Inspired Decorating Ideas for Bathrooms By: Kayla Kitts November 25, 2014 There's nothing quite like the sound of crashing waves at a nearby coastline. Bring that tranquil feeling into your bathroom retreat with these 15 beach-inspired decorating ideas. Price and stock could change after publish date, and we may make money off these affiliate links. Learn more. 1 / 15 Photo: Ryan Garvin. From: Blackband Design. Coastal Powder Room A visit to this powder room is a like a delightful trip under the sea, complete with fish friends (courtesy of the wallpaper) and a porthole mirror.