I've done it plenty of times where I braise the oxtail, pull it, and then fold in whatever seasonings/herbs you wish. I also add some of the gelatinous stock back with it.
Then proceed to roll it into a nice little cylinder in plastic wrap. (almost in the style of a torchon, but with plastic.) Let cool.
Slice into "coins", then bread or crumb it. Then sear or deep fry it.
You really get that gelatious unctious texture, but with a nice crisp on the outside.
i know it's not exactly how you wanna do it, but it's tasty.