...as that was rather vague.
1) Do you mean the LegoMan model, so all bots looks like a little lego person?
2) Do you mean a skin that makes the bots looks like they're made of legos?
Beyond that, think you'd need to go into bot setups and change them manually. It's not that daunting a task, it just takes patience... so watch a good TV show while you're doing it.
I save galleries of my bot configurations:
