Body modifications, piercings and tattoos can be seen as a useless artistic intrusion into the body but its not always the case, sometimes it can be useful and extremely clever, almost sci-fi.
1 – Magnets Implanted In Arm to Hold iPod
2 – Pierced Eyeglasses
3 – Camera Implanted in Head
4 – Toothbrush Tongue Piercing
What the heck, I love the idea though.. very useful indeed.