The Mathematics of Boneless Pork Rectums
wmbriggs.com
wmbriggs.com
http://ahungerartist.bobdelgrosso.com/2010/09/almost-nothing...
I won't spoil it, except to say: not about food.
Chewy, a bit cartilaginous, but not bad. I guess if you braise them long enough they become quite tender. I saved the remainder and had them later over the span of a month.
It was a fun experiment but I've not the guts to go after many of the other parts that most people pass over like the lungs and brain.