This design by Scott Amron turns the label into fruit soap that washes away dirt, wax, and pesticides. The label dissolves under water, with some rubbing, although it is somewhat water resistant. You can peel the sticker off, too, like regular labels.
• See more: Amron's Vanishing Fruitwash Labels
No word on whether this will be adopted by any big produce companies — but we like the idea!