"Designer Liu Hsiang-Ling quite poetically brings out the relationship between an umbrella and the rain. Simple pleasures from the past that we have long forgotten; jumping into puddles or using a stick to draw in the sand! Her take is this Rain Brush Umbrella designed with a paint-brush (silicon) like tip, so that you can dip it into the nearest rain puddle and start drawing water graffiti on the sidewalk. A nice past-time if you’re waiting for a bus or something.
Liu has pointed out in her observation: When people are waiting for the rain to stop, the interaction between people and umbrella is the most frequent activity. People usually use their umbrellas to leave a mark on the ground with raindrops, and those unintentional games are the consequences of a raining day; maybe they are tic-tac-toe or just graffiti on the road. When they use the umbrella tip (ferrule) to dip into a puddle, water and ground become elements for self-expression."
source via vic