I would like to see a supercut of all instances on Bones where a medical implant serial number has provided the identity of a victim. It's not all the time, and it's not even more than half, but it pops up a lot. I remember breast implants, artificial testicles, pacemakers and even a prosthetic stapes (eardrum bone). There have been more. Putting them all together into a supercut would point it out pretty well. It feels, sometimes, like this is a shortcut the writers take when establishing the identity of the victim is not a central plot point, or they don't have time for that as part of the main story.
It also makes me think that having such an implant, even cosmetically, might not be such a bad idea. Quick and easy identification of my remains, in the unlikely and hopefully-only-theoretical event of my grisly murder, could save a lot of time for the investigation. Or I could wear dog tags, but those are much easier to remove or lose.
Mokalus of Borg
PS - I wonder if any doctor would perform a surgical implant just for posthumous ID.
PPS - Probably not. In most cases, it wouldn't be worth it.