The first artificial Christmas trees were created in the late 19th century and were made from materials such as goose feathers, dyed green to resemble pine needles. These feather trees were created in Germany as a response to deforestation and the need for a sustainable alternative to real trees. The feathers were attached to wire branches which could be bent and shaped to create a full, tree-like appearance. Later, other materials such as paper, tin, and even glass were used to create artificial Christmas trees. Today, most artificial trees are made from PVC or polyethylene plastic and can be designed to look very realistic.