Hatteras Hammocks Wood Spreader Bar End Cap

My wife purchased a Hatteras brand Hammock from someone on Facebook Marketplace and put it in our back yard.  We have a very tall white lab that thought the teak spreader bar on either end of the hammock looked like a tasty chew toy.  Over time she chewed enough of it off that the outer hammock ropes were falling and touching the spreader bar at that point was causing splinters.  We mentioned that if we ever got another hammock like that we'd find a way to prevent that damage.  After searching online for a while and not finding anything existing I decided to attempt creating a 3d model myself.  This is the 4th iteration of that design.

It's designed to fit over the end of the spreader bar with the small detent to allow the outermost rope to pass through but then to help prevent it from coming back off.  Eventually I'll get around to uploading the other models from earlier versions in case anyone is interested.