To raise awareness of the dependency on rainwater for drinking in the dry region of Northwest China, the Lotus Light Charity Society together with Grey Hong Kong designed an umbrella bag that (as it fills with water) illustrates how much water is needed to fill a single, small cup.

Three different messages were printed on the bags to emphasis the effect of the cup filling up on the bottom:

• It takes half a day for people in China’s arid regions to get this amount of clean water.
• People living in China’s arid regions call this pure water.
• In China’s arid regions, a child gets less water than this a day.