Re the story below I never realized they has actually constructed/installed an artificial anus for him as a result of his medical problems. How does this work? Is it make by re-sculpting the skin or it some sort of appliance?
Google “Artificial anal sphincter” on both Web and Image settings and you’ll find some information. It is a fluid filled donut that can be filled and unfilled to close off the anal sphincter in patients who have had surgery in that area. There is a similar device for the urethral sphincter in patients who have sustained damage following prostate surgery.
Band name alert.
With, or without, “Fidel Castro’s” at the beginning? 
Does it have a prehensile option? 
Geez, talk about tearing someone a new…
Definitely. I’m thinking 80’s psychedelic punk band from Austin.
Mmmmmm… fluid filled donut…
So this thread isn’t about Raul?
Might this anus be considered…remarkable?
It’s about Castro not Astro, for goodness sake !
For publicity purposes, “Billy Bob Thornton and Special Guest Fidel Castro’s Artificial Anus”.
Does it make a noise when it opens and closes… something like the turbolift door in Star Trek?
Have they applied this invention yet to make a vagina which can be tightened at will? Does it also vibrate?
Most modern vaginas can be tightened by screwing.
You misspelt “loosened” my friend. 
Please tell me those ‘doughnuts’ aren’t covered with chocolate and sprinkles.
While the long term effects of repeated screwing may include the loosening of some randomly selected vaginas, a single screw should ideally tighten and loosen any given vagina using alternate forward and reverse motion.
I could go on, but perhaps we should get back to the small matter of Castro’s auxiliary anus. We don’t want to give people a bum steer.
So, the way it sounds, you push a button and the donut relaxes and the poop just falls out? No more “giving birth” style bathroom breaks with the grunting, pushing and screaming bloody murder. Full dilation is achieved effortlessly at the push of a button. When people find out about this, it might catch on. I’m going to invest all my money in the donut ass door.