How to cast details with different colors of resin?

[Bambino]

I'm a bushy-tailed newbie to casting, but I'm interested in learning about how an experienced person would cast multiple colors of resin into the same finished piece.

I'm aware of a process where the caster makes a first pour into the mold using a first color, lets it partially cure, and then makes a second pour using a second color and allows the entire batch to finish curing. However, this process only allows a horizontally layered final product.

Example: http://imgur.com/9tcbVzY

What I don't understand is how to get certain details in one color and other parts in another color, particularly when they aren't at distinct horizontal "levels" in the mold.

[Fleafa]

Example 4 is probably two separate components. Otherwise, you can paint one colour on to the details you want, then pour the second colour.

[mangozac]

Your other option would be to do different hear halves of the mould for each colour, blocking off the areas that will be filled with latter colours. It would be very tricky and quite a slow process!