Graffiti has some pretty bad stigmas attached to it and is seen as an act of vandalism by many. Critics of graffiti will be pleased to know however that there are other ways out there other than using a spray can.
Moss graffiti is exactly what it sounds like - using moss to create beautiful works of art. There are numerous ways in which the examples you see below have been created, some have been carved from masses of moss whilst most common is the process of creating your own mossy paste that can be painted onto walls and will slowly grow and blossom.
Wiki How has a step by step guide on how you can create your very own moss graffiti. Here are some incredible examples of what can be created. Forget the spray can, moss is far more beautiful: