cutout
OAB Definition
object cut from a sheet of paper or other substrate; term also may refer to a space where material has been removed from a book page or cover.
In crafts and children’s’ books, often refers to an object that has been cut out of paper or board. In book arts, cutouts are usually holes cut through pages to reveal content on another page. Peep-show and tunnel books (link to term) are made of pages with cut-out windows to create scenes with dimension.