It’s not exactly trivial to cut them out by hand. [Juan] recently learned a new trick to make cutting solder stencils a less painful process. He uses a laser cutter ... as DXF files, he explains ...

or just laser cut from a piece of plastic; the perfect material for sneaking one through a metal detector. The .DXF and .STL files for the handcuff keys will be available on Thingiverse shortly.