What can you do with a suitcase that nobody wants? One hotel in Tokyo has found an unusual answer: grow vegetables in it! Hotel Niwa Tokyo uses some abandoned suitcases as planters in its rooftop garden. About 10 suitcases are left at the hotel each month, and guests have a limited time to collect them. If nobody comes back for them, some are turned into planters.

The hotel now grows about 40 kinds of vegetables and herbs, and some of the fresh produce is served in its restaurants. Guests are often surprised to learn where their food comes from. The hotel is also thinking about holding workshops to teach local students how to turn old suitcases into useful planters.