We all shed skin - it\'s just lizards do it all in one go - I\'m not zoologist, but I\'m GUESSING a tattoo would still be permanent on a lizard/amphibian.
As for what type, I think the Mayan/Aztecs artistry was mainly cubist in style - it mainly being carvings etc
The fond of complex geometric shapes though, so try googling Aztec Heiroglyphs/Pictograms