a waste container , such as for a van or suv , is made from decorative or color - coordinating fabric to form a cylindrical container or shell . the shell includes a mechanism for holding a standard - sized plastic bag in place within the shell so that the plastic bag is supported and partially hidden from view . the shell also includes attachment devices for securing the waste container to the interior of a vehicle . the plastic bag is easily removed from the shell for disposal , and a fresh bag is easily installed .