This is a simple handle that I use
often. Made from 3"x 5" rectangles, I cut "v" shapes in the center. Then, use a brayer to make lines. Join the "v" shapes on both sides. Clamp the handle around the rim. As it dries, it closes onto the pot. You can put joining slip on the underside if you like. Even if they move when dried, the glaze will hold them tight.