eve and i used reflective tape on our tsviet costumes (well, i started to on what i got done, lol) it seemed to work really well. the light would hit it at the right angle and it looked like it was glowing, and in photos of eve it always shined in the flash of the camera. i'll see if i can find the link to where we got it, or maybe eve has it. we thought about the wires, but finding places for the battery packs and linking up all the wiring seemed too labor intensive, and the tape looked great and was much easier ^.^