TP to support a teapot handle has 3 major advantages: It's customizable. You can remove paper to make the interior curve of the handle smaller. You can squish the roll a little to get a more parabolic shape, in either direction. It's cheap and readily available. If there's no TP in your home, better stop reading and go get some. It compressed as the handle dries and shrinks. So, you won't crack your handle if you fail to remove the support at the exact moment the piece is firm enough.