You may have a grandfather or an uncle that served in World War II.  If they have a tattoo you've probably heard that it meant something more.  Did they know that their tattoos had a creative spark in all of them?  It may seem that since so many military men had tattoos, that they were all just jumping on the bandwagon.  This parallels the reasons why people get tattoos today.  So does that mean tattoos were just a fad back then?  Perhaps.  That may be why when we see those green tattoos on veteran's arms we don't exactly think of them as creative.  But when you see them, don't just think "blah," think, "ah."  The individuality, as in wanting to exhibit rank and masculinity, that came from wanting to get these tattoos stems from their creative unconscious.  The wanting to be identified and different makes these men creative. 

Tattoos were also used to identify their prisoners that were put in concentration camps by the Nazis.  The only way creativity can be defined in this sense is really sick, very politically incorrect.  So to avoid any remarks that may cause upheaval we'll just show you what the tattoos that were received look like.      

"The numbered tattoos that have today become an identifying mark of Holocaust survivors originated in Auschwitz, the largest Nazi concentration camp in Europe. There, incoming prisoners went through the infamous selektion (selection process).  [All prisoners were tattooed not just Jews]" 

http://www.us-israel.org/jsource/Holocaust/Tattoos.html