There is always someone who will take their appearance one step further. Subdermal implants are an example of taking things 10 steps too far, in our opinion. But who is to judge beauty?
It's similar in process to the subconjunctival implants, but under the skin. This Flickr user documented the implantation. Wired magazine reported on this in '06. Infection would be the most feared risk of this type of surgery, and embarassment at family events would be second.