You want something absorbent, especially for the middle layers, and you might want something decorative for the outside, if you want to display it in a room and you're fussy about things like that. Some people put a waterproof material on the backside, so no moisture can reach the surface below. You could take old towels, and sew in a square, and cover with a cotton fabric for looks. Lots of different ways, and some people buy special absorbant pads and cover those. |