Love it or hate it, graffiti is everywhere nowadays. And defacing your model railroad with Blair Line graffiti is fun, affordable and legal as far as we know! All decals are reproductions of graffiti found on real railroad cars. Use on freight and passenger cars, buildings, walls, bridges and everywhere. All decals are reproductions of graffiti found on real railroad cars. Can be used on freight and passenger cars, buildings, walls, bridges and everywhere.