No, no. They're not made with floor sweepings. (My kids think they're so funny.)
These are supposed to be called Kitchen Scrap Cookies, which I don't really like either, but it will have to do for now. I found it on the Like Merchant Ships blog, via a side trip through In a Shoe. Since we did have leftovers from this morning's crockpot cereal (the main ingredients of that were brown rice and oat groats, with a little TVP), I decided to try it. They are good! A lot like pumpkin drop cookies without the pumpkin, which makes sense if you think about it because you're just substituting one thick wet thing for another thick wet thing. We got about four dozen small cookies out of the batch.
Another idea for using up that cooked crockpot cereal (or leftover oatmeal) is to put it in muffins--this only uses up a bit of it (maybe half a cup of cooked cereal per dozen muffins), but sometimes that's what you have. I follow the Tightwad Gazette's instructions for incorporating cooked grains into muffin batter: that is, run them with all the other wet ingredients through the blender, and then add the dry ingredients and adjust the wetness as needed then. I don't own a real blender, but a stick blender works fine for this. I like some applesauce and cinnamon added too. And muffin batter can also become muffin cake if you bake it in a square pan at 350 degrees.