This star wars papercraft is a Rancor mask, created by original site. Rancors were large carnivorous reptomammals native to the planet of Dathomir. They were usually born brown, but in special circumstances, such as the mutant rancor, Jungle rancor, and the Bull rancor, their color may have differed. Although found on other worlds such as Lehon - where they were brought by crashed starships - Ottethan, Carida, Corulag, and Felucia, those from Dathomir were said to be stronger and more intelligent than others. They have been used for many things, ranging from mounts for the Witches of Dathomir to pets for crime lords such as Jabba Desilijic Tiure to being a source of food, and as a means of entertainment by dropping someone into its pit.
Vonnda Ra of the Nightsisters used a stuffed rancor head as a chair. In her youth as a Jedi trainee, Hapan Queen Mother Tenel Ka Djo used two trophy rancor teeth for handles to create both her first lightsaber and second, current lightsaber. Rancors were also the source of the delicacy known as raw rancor-beast liver.
You can download this printable template here: Star Wars - Rancor Mask Papercraft Free Download