Try something like a candy or transparent color after a white basecoat. One of my favorites is dip in white base, then dip in candy yellow, tap on orange with brush and into the silver crinkle. I have been baking mine starting at 325 for 10 minutes and then raising temps 25-40 degrees for 5-10 minutes so they run even more. Once I put them in the oven with the heads pointed up I don't open the oven until I am finished. Opening the oven during baking allows cooler air to enter and I think this stops the color separation.