If you aren't hashtag-blessed with tall ceilings, you can make a room seem bigger. Hang a curtain rod as high as possible, try a canopy bed. Or borrow an idea from Nursery Design 101 and get yourself a hanging mobile. Whimsical in the most elegant way, these dangling art installations don't always look like play things for 1 year olds—we're into the ones composed of geometric shapes, fresh color schemes, and natural materials, all rigged up in Calder-inspired balancing acts. Hang them high and watch them wobble about, catching the sunlight and reminding you that it's okay to act like a toddler when it looks this good.