This classic, plain black umbrella has a dark secret!
When it rains, a pattern of black skulls appears on this otherwise rather inconspicuous umbrella.
The skull print is created with a "secret" ink that is only visible when wet. It is completely invisible when dry, but when the sky opens up, the skulls appear, and the more it rains, the clearer the pattern becomes. Shiny black skulls on a matt black umbrella. Bring mischief to an already gloomy day.