Inspired by Belly Tank's detachable collar and Baron Kurtz, I went to a local shirt maker and had a shirt made. After 6 work days, he produced the following:
The collar (3 1/4 inches long):
The front:
The back:
He couldn't do Matt Deckard's tails, but a really good job. Fit's great. He let me choose the fabric.
The collar (3 1/4 inches long):

The front:

The back:

He couldn't do Matt Deckard's tails, but a really good job. Fit's great. He let me choose the fabric.