Picture a suit cast in one piece from translucent silicone rubber. It covers the outsides of the arms and legs, the hips, spine, shoulders, upper chest, and hoods the head, with just enough strapping over the rest of the body to keep it on. It is covered with feather light guides made of the same rubber, with a cluster of RGB LEDs at the base of each feather, and a network of fine black wires runs through it between the LEDs. The light from the LEDs fills the feathers.
The LEDs can display all possible colours at all intensities up to a very high brightness, and each changes individually. Rippling, shifting and writhing patterns of light and colour run over the surface of the suit in response to the wearer's movement.
This is what I'm working on at the moment. I'll post more about progress and the technical details as the project progresses.