A Viking-inspired hat/helmet designed in a fantasy style, printed in PLA material with a layer height of 0.28 mm. The model features a rounded helmet shape with eye-catching upward-curved horn decorations, and intricate Celtic knotwork details are meticulously carved on the central ridge line, the horn-wrapped bands, and the lower edge. Decorative rivets adorn the dome, while the sharp spiked crest in the front further enhances its unique character and symmetrical beauty. The matte gray surface highlights the delicate carved patterns,