The two most interesting tattoos I've seen over time unfortunately belonged to guys but I think are worth noting....
I was in the navy with a guy who had a chicken hanging from a gallows tattooed on his calf. He would wander into a bar, sidle up to an inebriated sailor and bet the guy he had a cock swinging below his knees. He won a fair amount of money....and got into a lot of fights....
A fellow I worked with way back in the day had a robin tattooed on his but cheek, pulling a worm out of his ass. I never fail to cringe when I think about how much the worm part of that must have hurt when it was being applied....
But I did work with an extremely attractive female engineer about 10 years ago that had a "tramp stamp" tattoo of some feel good quote (I forget what it said). She ended up getting pregnant, gained a great deal of weight and when she returned to work the tramp stamp was permanently unreadable, even after losing most of the weight. It looked like some drunk got loose with a needle gun.......