Here i have created a laser cut latex t-shirt. The tottenkitten logo is back lit by a silicone diffuser that contains 3 ws2811 5mm through hole LEDs.
video of fire effect here: http://youtu.be/P-JUguqPv1o
Controller, battery and charger:
Controller is an adafruit trinket; paired with Li-pol backpack charger. The can above the charger is a simple vibration sensor (spring in a can). Charger and trinket are connected with bent pin headers to create a simple bus bar for easy connection of power and ground wires. Whole kit is wrapped in leather and riveted closed.
Controller pack and diffuser:
The controller pack closed up with rivets and magnets glued to the surface for easy mounting inside the top. The diffuser is silicone poured out onto plastic then pre-soldered LED's inserted while the silicone was still soft. extra pour on top to seal in the LEDs.