A mounting laminate can be used as a mounting sheet on which undersize items can be mounted for processing in devices equipped with stacked sheet feed mechanisms. The mounting laminate has three primary layers: (a) a masking layer, preferably paper, formed with discrete openings, preferably circles, (b) a back layer, preferably a thin plastic film, and (c) a pressure-sensitive adhesive layer adhering the masking layer to the back layer and extending across each of the openings.