The way I do it. Might be a little expensive, but unreal results.

1. Prep items perfectly
2. Prime and sand.
3. Base coat of bright silver
4. Heavy flake, or size of your choice. USE SILVER FLAKE, not colored flake
5. Spray appropriate candy color over silver flake
6. Clear
7. 1500 sand paper
8. Clear again
9. 2000 grit paper
10. Clear again if necessary
11. 2000 grit paper
12. Buff shiney

2 bb

I have done a dozen bikes this way, and the results are absolutely show quality.

2 bb