Remix of the original helmet by romcoromcoromco : https://www.printables.com/model/303724-viking-helmet Hollowed out a little more and sized up 102% to allow for easier fit when padding is added inside the helmet. Re-uploaded as a single STL file where the horns are printed inside the helmet cavity.

Same print parameters as the original. Tested in Polymaker Poly Lite PLA. 0.30 layer height, no supports needed.

Also available on Tinkercad: https://www.tinkercad.com/things/4Yiv34hUTsp