Spear of Namor, shown in the first trailers for the movie Wakanda Forever.As I understand, Namor should rather be wielding a trident... But for the shape of the blade it has, I think calling it a spear is more accurate.

Complete model and divided into parts that you can print on a standard-size filament printer (such as an Ender 3)To join the different pieces you can use a cylindrical tube up to 1600 mm long and 24 mm in diameter and 2x wooden sticks 30 mm long and 6 mm in diameter.