I find this interesting. A LED light bulb with a built-in speaker having audio driven by a Bluetooth connected device. Personally I would hesitate buying until I actually heard one, but I find the concept rather intriguing. For example, if you wanted to pipe Christmas music around the home during the holidays. Simple way to do it (although not cheap).

https://www.hellotwist.com

That could be a bright idea. 
 
Not sure why they don't have a small video presentation, I think that would help sell the concept.