Inform effectively, educate & speak your mind. That's no problem with plastic stencils and chalk spray. You can temporarily apply your motive or message like this in places where they will be seen. Ecologically harmless and easily removable in the end.
With a little artistic imagination & creative use of the stencils you communicate your message not only in a cooler but also in a more effective way. Create an interesting 3D look on your poster or floor with multiple colors by simply moving the stencil. With just a little effort you will leave a lasting impression!