I've seen some obscure reference to @GJM having such a thing and maybe I found a pic (but cannot find it now). I was intrigued by the idea and made such a thing while waiting for my DSG and Mika holsters to come in. After receiving both of them, it turns out I like the Milk Jug holster better than both. Here are some pics of what I'm using. The black tape is Gorilla Duct-ish tape. I like it because it adds minimal bulk (compared to the Mika especially) and covers the trigger. The tape also has the added effect of grabbing the inside of the pocket and retaining the holster on the draw.
Thoughts? Good idea or bad idea? Improvements?