Both of these pieces are based on a group of chameleons in the group (genus) known as Brookesia. These are all small chameleons the smallest of which, Brookesia minima, is the smallest known chameleon in the world reaching a maximum of 4 inches. Madagascar is the home of all species of Brookesia as well as many other unique types of chameleons.
A portion of the proceeds from the sale of these pieces will go to an organization, Aiza Biby, that supports conservation education for the youth of Madagascar. You can learn more about this organization through their web site: http://www.biby.org/