Take for example this little bead called Aztec. The Aztecs reached their prime in the 15th century, when the Spaniards conquered them and destroyed their culture. Aside from their human sacrifices they where known for their amazing pottery, which is where the inspiration for this Trollbead has come. A very similar bead called Najaho, #11139, was retired in March of 2006. I own both beads and actually love the Aztec bead more, the design is the same, yet more intricate.
The first picture is Aztec, #11102, and the second picture is retired Navaho, #11139.
Other beads to discuss are Frogs (Zuni inspired) and the retired Pueblo bead.