Here I am again talking to myself...

I found some new info about the Aztec and Inca.
Aztec:
The Spirit of Emperor
The Official Sign of The Emperor,
Montezuma I, The Aztec Emperor used this ensignia as a representation of his spirit.
He was the creator of the Empire, many architectural monuments, aquaducts, and institutions; therefore,
this sign was also a sign for creation and creativity.
The Imperial Banner
This is the graphic replica of the Aztec Imperial Banner.
The Representation of Aztec Authority.
This Emblem is often engraved on the Ancient Aztec Calendars.
Found here:
http://www-rohan.sdsu.edu/dept/sdsutrio/PCI-Logos.html
For the Incas I personally think that we should use a remake of Paradox original shield.
1. The shield that I've done isn't in any way correct, it's made up
by some historian...
2. The sun was the most important symbol in the Inca empire.
This one is by Trajanus:
EDIT: Found this about the Maya
Hunahpu and Xbalanque
These Hero Twins overcame the forces of death, paving the way for the conception of humans. They are usually shown wearing
red and white cloth headbands, a symbol of Maya rulership. The face of Hunahpu serves as a glyph for the day name ahau, meaning king.
Taken from here:
http://www.civilization.ca/civil/maya/mmc10eng.html