Moss graffiti is the eco-warrior’s answer to traditional chemical laced spray paint! Not only is it perfect for environmental messaging, it is also a fun form of guerrilla gardening.
See Show Me How‘s illustrated, easy to use guide to making your own living, breathing work of art.
Source: Paint Moss Graffiti – Step-by-Step Guides for Offbeat DIY Projects – Popular Mechanics
www.wikihow.com/Make-Moss-Graffiti has an alternative recipe that uses buttermilk/yogurt, water/beer and sugar and corn syrup to get a thick paint like consistency. They also advise to check back weekly to either spray the design with water (to encourage moss growth, especially if you live in a dry environment) or apply more moss-paint.
