So, 3D Printing is entering everyday's life...

Two 3D-printed and one laser-cut copy of restricted handcuff keys

Hacker Opens High Security Handcuffs With 3D-Printed And Laser-Cut Keys
"The security of high-end handcuffs depends on a detainee not having access to certain small, precisely-shaped objects. In the age of easy 3D printing and other DIY innovations, that assumption may no longer apply..."  more:  forbes.com