Maybe this has been done before, maybe it hasn't. I have done no research into this, BUT am going to post nonetheless. Topic: Macronutrient Chewing Gum.
So I chew gum often. I also drink protein shakes daily. I hate the taste of protein shakes, along with the fullness that comes along with making one with milk (if you drink them with water you're psychotic). With that said, I believe a chewing gum that is either filled with sum sort of liquid, or just a basic chewing gum, that contains some sort of sufficient macros to act as a protein shake or even meal replacement. Maybe this sounds ridiculous, but I would go wild for this.