LED

I think in the past couple years LED lights have grown more popular, and are being used for more than just Christmas lights and household bulbs. They're being used for art, and even clothing, which was difficult to do pre LED. Yes fiber optics were around, but they were expensive and limited. LEDS open the doors for light artists to expand in color and versatility. 

"Handbags that display tweets. Bracelets that charge your phone. Bangles that light up when you get a phone call. Tech and fashion are teaming up to make wearables more wearable."

LED Clothing
Technology and the fashion world are beginning to merge and the results are amazing, I can't wait till all of this stuff is affordable and we can start "looking" like the future. 
Wearable Technology