If you like graffiti art and/or "3D style" text effects, I have a nice tip that can inspire you to create great "virtual pieces of graffiti art".
There is an online tool that let you write virtually you name in a real (photographic) wall using a very powerful and versatile interface. Try this Graffiti Text Effect software and see by yourself.
This graffiti creator is amazingly powerful. Some people feel a little scared because of the big number of configuration options this tool has, but don't worry. It's not that hard to learn how to use it and the default parameters already make a great job.
As an example, you can create a very realistic and professional graffiti of your name (or whatever you want) just by putting it in the first text box. So, if you press the "Calculate Effect" button, you already get a beautiful graffiti text like this (click to see in real size):
If you really want to know how to use the full features set, don't forget to read the valuable tips at the page top. Following them can help you to get a smoother learning.