Queen Bean's Photo
From the Super Mario Wiki
Queen Bean's Photo is an item found exclusively in Mario & Luigi: Dream Team, and the sixth item collected during a series of item trades pertaining to a sidequest in Wakeport. As the name suggests, it is a photo of Queen Bean. Mario and Luigi are given this item from a Beanish in Wakeport's gear shop after they give him the Book of Ruins.
Mario and Luigi must then head to the westermost hotel room in northeast Wakeport to give this item to a homesick Beanish under the stairs, who will thank them and give them the Lost Camera in exchange.