This is an important day for a lot of un-developed countries. The goal of this day is to tackle the global sanitation crisis and draw attention to those without sanitation.
Reading the information on this day, it said not to use bathroom humour and it is no laughing matter; but, sometimes humour spreads the message. It is up to you how you choose to mark this day.
I decided to go out into the street and find a man hole with the cover for the pattern it showed!