This helmet papercraft is based on the film "the Lord of the Rings", it is very similar to the one worn by Gimli the Dwarf. This paper craft is from tektonten's blog, and the format is PDO, you can use Pepakura Designer or Viewer to open it.
Dwarves are a race in Middle-earth also called Naugrim, Khazâd, and Gonnhirrim. The correct pluralization of Dwarf in the works of J. R. R. Tolkien is noted to be Dwarrows or sometimes Dwerrows. In the fiction of J. R. R. Tolkien, the Dwarves are a race inhabiting the world of Arda, a fictional prehistoric Earth which includes the continent Middle-earth.
The Dwarves were made by Aulë whom they themselves call Mahal meaning “maker”. Aulë was unwilling to wait for the coming of the Children of Ilúvatar for he was impatient and desired to have someone to teach his lore and his crafts, therefore he made the first Seven Fathers of the Dwarves in secret in a hall
It was however not within Aulë’s power to create life. After being reprimanded by Eru Ilúvatar and realizing his error, Aulë offered his creations to his father to do with as he would including their destruction. Even as the offer was made Ilúvatar accepted and gave the Dwarves a life of their own. So when Aulë picked up a great hammer to smite the Seven Fathers and destroy his presumptuous creations they shrank back in fear and begged for mercy.
Ilúvatar was however not willing to suffer that the Dwarves should come before the Firstborn and he decreed that the Seven Fathers should sleep underground and should not come forth until the Firstborn had awakened.
You can download this helmet paper model from here: Lord of the Rings - Helmet of Dwarves Free Papercraft Download