The potlach ceremony is marked by members of the community dancing to a rhythm set by a group of singers. Such a ceremony is used to celebrate births, deaths, marriages, etc.
It takes a year of hard work to create a chilkat blanket.  Dyed goats wool is used to weave a chilkat blanket, and the formline designs are abstract geometric versions of animals which represent clan symbols.   The traditional dyes were used to dye the yarn with such colors as yellow, dark brown, and greenish-blue. When the blanket is complete, the fringed edges are braided.  
The copper is literally a flat piece of copper with a curvature that is held against the arm. It command respect when a chief is orating in order to ward off shame, malice, or insult against him and his family. The copper is used along with the speech at the end of a potlach ceremony.