I dunno hon. I hear where you're coming from. But just the simple the fact you're going to get a tattoo is a statement enough against the WTS. My suggestion is to get something that represents YOU. The new you. Your personality. Your being.
I know the WTS was a part of your life then, but to me, it's carving more bad memories into your flesh. We already have it carved in our psych.
I'm a female. When I left the WTS I got tattoos. It was more crossing a threashold into a new life thing for me. I chose armbands on each side with a tribal but fem design. I placed my tattoos there because it's more of a statement... "I'm free to do as I wish. F**K U"......yes and I'm still happy with mine.
Take your time.