I am doing a Grave Digger Monster truck cake this week and will be using Satin Ice Black to cover the car. What is the best way to decorate the car so that the bright colors (neon green, purple, white) show up? Normally I paint designs on fondant with food coloring/vanilla. Can I do that in this case? Is there a way to "seal" the fondant so colors won't seep in? I see people have painted designs on black fondant, I just need to know what the technique is. Can anyone help? Thanks!

I have never made a Monster Truck cake so I am just guessing. But I would think the best method would be to use another medium mixed in with the edible color. Such as royal icing or maybe Americolor White with the other colors added in. Or, place on strategically cut out and painted fondant panels.This is how I did the sides on my NASCAR #95 cake in my cake pictures. HTH

melted cocoa butter mixed with whatever color that you are using