Sorry it took me a while to check my DA and see this! (Also I'm freaking out a little bit that I paused watching Sense & Sensibility to check this and was confronted with your icon right there, haha!) My San's spear is made from two pieces of foam-core board, each sliced halfway through, up their length, on the inside, so they'd fold at a gentle angle, and cut at a very sharp bevel on the edges so that at the very edge there's no foam left between the two paper edges that meet. Theyre then mounted on a paper tube wrapped in black and that is secured to the end of the pole, which was a dowel left in partial shelter in my backyard for a long time to weather and warp. The chevrons are a metallic red paper card, cut out and folded a bit for some dimension, and glued on. It's a delicate prop but extremely lightweight.