Papercraft creator extraordinaire, Rawen, has a free Cthulhu paper model available on his Patreon site. Rawen, a lover of all things Lovecraft, created this model as work of fan art. The printable PDF template for the model may be downloaded here. The character Cthulhu was introduced by H. P. Lovecraft in 1928. In his writings, Lovecraft described the monster as having "an octopus-like head whose face was a mass of feelers, a scaly, rubbery-looking body, prodigious claws on hind and fore feet, and long, narrow wings behind.”
Previous Lovecraft Papercraft:
2D Halloween MaskLovecraftian Books
RPG Elder Thing
2.5D Mythos Creatures
House of Cthulhu Paper Toy