An assembly including a front panel is separated from a back panel by a panel fold line. Side flaps are disposed at opposing edges of the front panel and are each separated from the front panel by a flap fold line. The side flaps include a front flap surface with an adhesive material and a back flap surface opposite the front flap surface. The assembly is foldable about the panel fold line to dispose the back panel adjacent the front panel and foldable about the flap fold line to dispose the back flap surface adjacent a front surface of the back panel when the back panel is folded. In a folded position, the assembly forms a pocket between the front and back panels, and is adherable by the adhesive material to a separate surface.