I'd like to get some pictures up, but my tats are hard for me to photograph without help (I actually don't see them much, which has kept them very fresh for me since I'm always a little surprised to catch a glimpse!).
I have two.
One is a semicolon on the back of my neck. To me it symbolizes a lot of things conflated by the grammatical symbol. Its chief meaning is to remind me to follow my dreams and passions--writing, editing, language. It also stands for the beautiful separateness yet conjunction of the two hemispheres of my brain, left and right. It's like a physical reminder of my corpus callosum. The third and last meaning is that one thing's close is the beginning of a new, connected, independent experience, the same as how a semicolon both separates and connects independent clauses.
The other one is much bigger but way simpler. I have a Celtic knot pentagram on my left shoulder/back area about the size of my palm. It is a tribute to my biological mother's life. I never met her, but she had five children (I've met the other four), she was almost purely Irish in ethnicity, and she connected the five of us for life. So, five points in a continuous knot!
Here is the correct knot pattern, but mine is grey scale and (I think) better shaded:
"Nothing is neither good nor bad, but thinking makes it so."
Hamlet Prince of Denmark