1. A big black bug bit a big black bear and made the big black bear bleed blood.
2. If you notice this notice, you will notice that this notice is not worth noticing.
3. How many cookies could a good cook cooks if a good cook could cook cookies? A good cook could cook as much cookies as a good cook who could cook cookies.
4. How much wood would a woodchuck chuck if a woodchuck could chuck wood? He would chuck, he would, as much as he could, and chuck as much wood as a woodchuck would if a woodchuck could chuck wood.
5. Three gray geese in the green grass grazing. Gray was the geese and green was the grass.
6. A pleasant peasant keeps a pleasant pheasant and both the peasant and the pheasant are having a pleasant time together.