Searching for a treat for her 12-year-old grandchild, Edna Leigh retrieved a dusty, faded box of circa-1988 Betty Crocker-brand Pudding Roll-Ups from the darkest recesses of her kitchen cupboard Monday. 'Here you go,' said Leigh, handing grandson Danny Meyers the long-discontinued snack item. 'You like pudding, right?' To wash down the fossilized Roll-Ups, Leigh offered Meyers some Crystal Pepsi from the garage. 