Instead of ‘normal’ graffiti – which is harmful for the environment, use green graffiti!
There are a lot of different examples of green graffiti. Have a look:
Chalk & Milkpaint
Green graffiti is mostly used for guerilla marketing. Some forms of green graffiti cost more time to develop (the moss takes some time to appear for instance) but other than that it is an easy, effective way of using our city in a new way.
It is also a creative way of grabbing someone’s attention, and it can be seen as an inspiration on how to make use of natural resources and what we already have, instead of producing new products.