My favorite local butcher carries bags of what they call bacon rinds.
Years ago, I bought a bag, thinking they would be like pork rinds, only bacon. This did not go as planned. I finished the one I started, and put the rest in the cupboard.
Some time later, I was making some slow cooked dish (beans?) and thought that smoke flavor would go well in it.
I don't use liquid smoke and couldn't fit the slow cooker crock in my grill, but I remembered I had the bag of bacon rinds.
Since then, I've used them to add real smoke flavor to pulled pork, shredded chicken and beef roast.
I pull the expended rinds out of the dish before serving, because they have the consistency of wet strips of foam padding after eight hours in hot water.