I love the idea of moss graffiti. Im not a fan of your old everyday spraycan tagging type graffiti, but I do admire some of the more artistic stenciled wall art! BUT even better is something non toxic and living.
I might just make me a moss shake and paint my shed wall...see what happens!
I found this recipe on the wonderful www.storiesfromspace.co.uk
1 can of beer
1/2 teaspoon sugar
Several clumps garden moss
You will also need a plastic container (with lid),
a blender and a paintbrush
To begin the recipe, first of all gather together several clumps of moss (moss can usually be found in moist, shady places) and crumble them into a blender. Then add the beer and sugar and blend just long enough to create a smooth, creamy consistency. Now pour the mixture into a plastic container.
Find a suitable damp and shady wall on to which you can apply your moss milkshake. Paint your chosen design onto the wall (either free-hand or using a stencil). If possible try to return to the area over the following weeks to ensure that the mixture is kept moist. Soon the bits of blended moss should begin to re-couperate into a whole rooted plant – maintaining your chosen design before eventually colonising the whole area.