Courtesy of Bang & Olufsen
Bang On
Does anyone else watch the Great British Baking Show? Bang & Olufsen's Beosound Edge looks more like wall decor than a speaker. It's also fun to use—the intuitive balancing circle can be rolled, and knows when you approach. Once you're in range, it lights up its touch-sensitive control interface through the aluminum surface. 

Bang & Olufsen Beosound Edge, $3,500, bang-olufsen.com.