Alternating colours between characters

[Alcap]

Hey there,
I need to write something where a character has a colour and the next one has another. Like this:
Hello, World

Is there a way to make this process automatic, or do I have to colour each word by hand? I don't deal much with word, as I'm a linux user, and I'm considering writing a shell script for this very purpose...
Also, it is a very important project and it HAS to be done like this, don't ask why
Thanks

[Alcap]

BUMP!!! (sorry, it's really, really, really urgent)

[BrazzellMarketing]

The paste style feature makes it all one color. I don't know of anyway to automate font color shifts within a single word.