Even better than that, if you want to rework it, even after it hardens, just get it wet and it becomes clay again.
Even better than that, once it is hardened, you can paint on it, like you would paint on paper, hence PaperClay!
I am currently working on a art nouveau statue in it, which works especially well with the PaperClay, because it is lightweight and thereby great at creating billowing fabric and cloth. I'll post a pic as soon as it is finished.