Today's project is an origami box. Well, it could be a dish if you didn't bother to make a lid for it. The lid's not compulsory.
You can make these pretty much any size you like just by changing the size of the square of paper you start with. If you want to make a few of these that nest, the squares need to be 2 inches larger or smaller (so paper that's 8 inches, 10 inches and 12 inches square will make boxes that nest.) Want to see how it's made? Here you go -