Graffiti Ideas for Decorating the Living Room. This is the design of a living room with some street graffiti art. Graffiti art canvas to decorate the interior of the house usually. There are many types of graffiti, graffiti letters example there are many styles, just select the words that you want. There is also graffiti characters. Maybe you are interested in graffiti as a home decoration. Try and apply to your home decor.