Oh, that's the easy part. Ever seen a chicken truck going down the highway? Well just replace the errant feathers with bulk amounts of glass beads, they reflect the light that is shined upon them. Another company also sells reflective glass beads in bulk and in different sizes. Actually I saw that they sell extremely large beads (airport size they say) that are popular with artist. Check it out, a new medium.I really like this idea.
Out of the box creativity.
Now just need to figure how to leave a light trail behind the truck. Light cycle indeed!