I support people that like them and have no problem with it at all just something I never did.
There were all kinds of tat parlors in south east Asia and a lot of my friends got tats to document that part of their life.
One team member got a small black hash mark to log his kills which I found kinda sick but it was a sick and surreal time.
I did consider it a few times just never had that much R&R time.
The one I considered was the Ranger sleeve banner in olive drab like on the uniform (and in the same place).
The other was the 101st Airborne arrow logo like this patch I had on my hat.