Believe it or not, this cube-shaped watermelon is all-natural. Growers use a simple process to give the fruit this shape: Farmers plant young plants in see-through boxes. As the melons grow, they take the shape of the box.

Farmers in Japan started growing watermelons this way to save space in refrigerators. However, the odd-shaped melons are typically used as decoration and gifts rather than for eating. Often harvested early, cubic watermelons don’t taste as sweet as their round relatives.