I was actually dreaming about this the other day! I dreamed of a dress a dancer would wear that would have ultra efficient LEDs embedded every inch along with a power harvesting component and as the person danced, the LEDs that moved fast enough would harvest enough power to light up! I also wanted to add basic communication between LEDs so they could somehow be aware of their surrounding LEDs. Probably too futuristic for today's tech.
It was originally inspired by this talk[1] that Tesla's AI chip team referenced regarding the minimum amount of energy needed to perform a calculation.