I just yesterday made my first rope halter. I'm thinking about making them and selling them, but was wondering what type of rope would be best at a reasonable price. So far I've ran across these types that look good. The cheapest is the kind of rope I bought just to try it out and make my own rope halters, seems like good rope. It is a poly rope (polypropylene, polyethylene, and polyester). I can also get polypropylene itself. Next, I can order paracord. And, the stiffest I believe is the samson brand of halter cord. I've heard paracord is a good product, and while it isn't extremely cheap, it is not overly expensive either. I'm kind of leaning toward that, but wondered what you all thought.