A six hour banded penis that survived, wow splitdick. Did you use an ealastrator band(s)? I would have thought that after that length of time your penis would have died, but as Yoda said, the penis is tough. I wonder just how much longer you had before you passed the point of no return. I also think that after a certain stage, necrosis sets in and like what happened to you Yoda, the penis turns black after the bands are released. However, what if the band(s) are left on until the penis dies? I've read that the eunuchs in India actually use this method. Here's an excerpt:
On a day declared auspicious by the Guru, a thin but strong nylon thread is tied around the penis and scrotum separately after the person is under the influence of alcohol. He is kept under the influence of alcohol for three days. The thread is tightened at regular intervals and kept in place till the scrotum and penis slough off. It usually takes two to three days.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2721615/
It doesn't say when the genitals actually die, but it takes two to three days for them to fall off (slough off). I would guess that the elastrator band would cause cell death at about 8 hours, but I'm not sure. Sure not the way to go, but interesting.