Art of Graffiti

Graffiti Studio 2.0 is a quite popular digital graffiti art creator software and easy to use. This is a screenshot from Graffiti Studio 2.0:

graffiti studio 2.0 screenshoot

If you want to try it, you can get it with a freeware license and download it here:
-http://download.chip.eu/en/Graffiti-Studio_1066113.html