For those of us that don't hunt, a "rattling rack" is a set of fake antlers used to make sounds while deer hunting. Flextone has a specific "Black Rack" system that they sell, but all of that is not what we're here for. What we are interested in is that, in order to advertise their product, Flextone enlisted Duck Dynasty's Uncle Si as their new spokesperson. He was a natural. Naturally hilarious.