I don't have any tattoo's or piercings for that matter. I've always been deadset against it. Not that I don't see the artistic value of them; it's just not something I've ever wanted.
In December, one of my dogs passed away. I casually mentioned to my sister that, when the other one passes (hopefully years from now), I plan on purchasing a paw shaped urn necklace, so that part of him will always be with me wherever I go (not just in spirit). She suggested I get a tattoo of a paw with my dog's names on it. Since I wouldn't want the tattoo to be visible, she suggested having it placed on my chest, over my heart, both for sentimental reasons, and also because my chest hair will hide most of it when the hair grows back.
I've told a few people, and everyone seems to think it's a good idea, but I'm still not convinced. Then again, I haven't ruled the idea out either.