Whether it's "Officer, I was only going 90MPH" or "Honey, I can't get 'em off," sometimes you just lack a handcuff key. Fortunately, you can print one—if you happen to have a 3D printer, that is.
Using a 3D printer and a high-resolution image of the official handcuff key of the Dutch police, Ray, an SSDev member, printed a functional handcuff key. Scary and awesome at the same time. Best of all? You can get all the details on printing your own on his site. [ke.y.nu via BlackBag via Make]