I have made Dwarf Combat Muffins.
I actually tried to make bran muffins, on the theory that healthy portable breakfasts might be useful this week while I'm running round being an organiser at a conference. I used a recipe from 101Cookbooks, and being me, I made a few small substitutions. Oat bran instead of wheat bran; maple syrup instead of honey; macadamia oil instead of butter; low fat yoghurt instead of full-fat. I also made 12 regular size muffins, rather than mini-muffins.
I would have thought this would be OK. But no; they are very heavy. I'm not sure if it was because of my swaps, or because the recipe had so little leavening. 1 1/4 tsp carb soda seemed too little for 2 cups of flour, but I was trying to stick as close to the basic recipe as I could. I'll try again with SR flour, I think.
They are not a total failure - they're nice to the taste. Buttered hot from the oven, they were delicious. I ate two - and shortly after felt that it was a mistake. I was stuffed full of heaviness. I needed no lunch. Cold, they are too heavy to be nice, so they are useless to carry around. Unless perhaps you want to hurl heavy raisin-studded projectiles at an opponent.