Here is a quick little movie. There are a couple of things to note:

1) this was right after painting but before it was polished, it looks even better now

2) the movie is rather big at 6MB

3) since the movie has been reduced and the quality severely diminished, the sparkles are kinda big and messy looking

You’ll get the idea though, the sparkles are only in small regions just where the sun hits and the rest is black, a very cool kandy effect...