It took three years for farmer Hiroichi Kimura and his wife to cultivate heart-shaped watermelons. This year, they shipped 20 of the fruits, which "symbolize their passion for farming and their affection for each other." They sell for 15,750 yen apiece.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.