A few friends of mine have these and like the effects you can do with them: (you may need a larger set of LEDs than this, though.)
And I use a Dreamscreen with WS2811 LEDs behind it on my home TV to give an ambilight-like effect.
Before that, I used some RGB/CCT LEDs cut down to size. You could use a MagicHome controller if you don’t mind WiFi, or a Gledopto LED controller, which is compatible with Hue 
