First came vajazzling, with women (and some men) paying aestheticians to glue crystals around their pubic area, much to doctors' chagrin. Now, The Telegraph reports that women in the UK are getting temporary nipple tattoos to darken the areola -- sometimes in addition to breast augmentations. Since the tattoo ink fades over time, these nipple tattoos only last up to 18 months before they need retouching. Nevertheless, they aren't cheap. To darken both nipples can cost more than $1,800.