Ok, so I made my first attempt at the figures for my cake. Everything was going fine until I tried to draw on the details with a black food color pen. It looked awful! Can I used a Criso-based icing on fondant or gumpaste?
As long as no one is going to be eating them, you could draw the details on with a fine-point crayola marker That's the easiest and cheapest way.
Royal icing would probably work well too. I like using RI for details because it dries rock hard.
I agree with using royal icing.
You can also thin fondant with water to a piping consistency.
I've used RI before, and it wouldn't stick to the fondant I was using. I haven't been brave enough to try it again.
And would the color bleed?
By the way, why didn't my food coloring markers work? I was really disappointed in them.