Vincent, “a fledgling mathematician,” writes:

This tattoo is of a microscope. 90% of the time when I show it to people they say ‘Oh! a telescope!’ I generally don’t correct them, I just get a little uncomfortable and put my shirt back on. Most of the images are copies of SEMs, the background figures include, a fish parasite, anthrax, a scoop of iced cream that has fallen off the cone, flea eggs, bone marrow, and a virus attacking a sun dried tomato! yum!