This is the mask used in the movie with Jim Carrey. Long I've been thinking it was just a mask made by a prop artist, but thanks to internet I found out that it was based on a Norse mythology god, called Loki. Quite an interesting character, I must say. You can find more information about him here .
I made this drawing partly by using the dry brush method. Although the original mask is green, I find the drawing more appealing in black and white.