Now this isn't my thing, but Masonic tattoos are very popular. I know a few Masons that have them. Some of the designs are stunning. I really liked this one. I guess we all show our enthusiasm for the Craft in our own way. I'll stick with my rings and ties--I can take those off at the end of the day. :-)
If you're curious, I've touched on this topic in the past--you'll find those blogs here.