paper and plaster
gold
Wool was used to make portrait masks.
They were used in eighteenth century during a climate and religious repression in Venice
No. It would be extremely foolish to do so
wood
Linen was used to make the mask in Ancient Egypt. The also often painted it to make it look like the person who died.
The invention of carnival masks is not attributed to a specific individual, as masks have been used in various cultures and festivals throughout history. Masks have been used in ancient Roman and Greek festivals, Venetian carnival traditions, and in many indigenous cultures around the world. The exact origins and creators of the carnival mask are therefore difficult to pinpoint.
They were not used to promote enjoyment, they were a disguise which allowed people to have fun in an otherwise oppressive society without risking being found out, apprehended (if they broke either a civil or a religious law) and punished. Masks were worn, for instance, during the towns' carnivals (hence the Venetian masks).
The masks that were used as Egyptian "death masks" were usually made of gold and they had the purpose of was to give a dead face to the afterlife. The other masks were funerary masks. These were often made of wood and were made in to separate pieces.
Shakespeare used masks in his plays to give the characters mystery, or decite. Also to make the characters easier to follow, like which in Midsummer Nights Dream, he used masks to show who was the animals.
Mostly wood
They were often made from cartonnage, which consists of layers of linen or papyrus sheets bound together by plaster. Though some special Pharaohs such as King Tut had masks that were made from gold and inlaid with semiprecious stones.