Download this photo and open up the Gimp. Open up the photo we just
downloaded. Go to Select > All, copy & paste onto a new
layer. Delete the original layer.
Now you are going to need a type of logo. You can either create one
or find one online somewhere. For the sake of the tutorial, I
decided to create one. If you want to use one you found and not
make one, then skip down to step something. If you'd like to make
one, then read on.
"There are many ways you can go about making a logo/design for
graffiti (at least digital graffiti anyway lol). For mine, I'm
going to use text. Download this graffiti font and install it.
Restart the Gimp (save first!) and open your document back up."