The 3,000-flower display, known as the "Flower Mirror," responds to human movements by blooming as people pass in front of it.
A Japanese department store, Daimaru, has installed 800 motors in a major display window. The engines' collective job: To sprout a layer of darker flowers over the lighter colored varieties.
As Mashable reports, "Each time someone walks past, sensors detect their silhouette, and the corresponding flowers open in bloom."
The display also has the capability of mirroring back a variety of pre-programmed patterns, shapes, or texts -- like a set of letters which, one at a time, spell out the name of the store itself.
Measuring 16 by 10 feet, the display was installed in honor of the department store's 300th anniversary. Its life was fairly short, lasting only until the end of March at the store's Kyoto and Tokyo outlets.