No. I don't want anyone putting graffiti on my graffiti art. Nothing very complicated here that you can't duplicate very quickly. Besides, the Autodesk's 123D Design free software has some bugs that create problems modifying existing drawings, so it's best to start with basic shapes when learning to use the program.
The biggest problem is with printing. The hobby/open source 3D printers require calibration and settings that most operators don't fully understand.