These photorealistic sticky notes — in this case, fresh lettuce in a Korean grocery tray — come from the mischievous South Korean stationery company Ban8. From a distance, your co-workers might think there's really a piece of lettuce on their desk! But on the sticky note, they'll find the phone message or tracking number they're looking for. Each Ban8 Photorealistic Sticky measures about 85 mm wide, with different heights depending on the food. Each pad has 15 sticky notes.