Been wanting a prybar to go with my copper EDC stuff for a while but I was worried copper wouldn't be strong enough. Found this old wrench on ebay for $10 and modified it for my needs. Left one of the wrench jaws on there so there's two ways to use it as a prybar. The spike end is rounded enough to probably not tear through a pocket but tapered enough to splice rope or tighten knots. Ended up being 5 1/2" which is a nice size.
They don't spark when hit against stuff. Presumably the rope is for not dropping it in the lake.