Although this is not a recent trend by any means, I still think disco balls are great way to incorporate sparkle in a really laid back way. I love sparkles in fashion, but always fear going overboard looks less classy, and more childish. These rooms incorporate the disco ball in a subtle way, and still are cozy, despite being ready for a dance party at any given moment. Just a hint of shimmer, and a whole lot of natural textiles and plants, give balance and unexpected shine.
gathered disco balls play with scale//via here
dark and dramatic disco//via here
Taking the disco ball off the ceiling gives it an unexpected twist//via here