Dr. Awkward said:It is true that modrons would be much more interesting if they made enormous clockwork death robots more often.
Nah, no clockwork. Clockwork is for windup toys, not personifications of cosmic order.
Expand on the polyhedron thing. But make them INTERESTING polyhedrae. Like those here:
http://en.wikipedia.org/wiki/Uniform_polyhedron
http://en.wikipedia.org/wiki/Regular_polyhedron
http://en.wikipedia.org/wiki/Stellation
You could get even more mathematical and have modrons based on various fundamental theorems of geometry, algebra or analysis. Pythagoras would be proud. But it might be a bit inaccessible to your average hobbyist gamer.
But as for ants, I have one word for you: Them!
Zergs are so videogamey.