Prison pen

The problem with letting prisoners use regular pens is that a few of them (pens, that is) eventually go missing. Well, not exactly missing, but just not locatable until until they're eventually found inside someone's thigh, spleen, or eyeball. This Prison Pen hopes to solve that dilemma by making the pen soft, and therefore unshivvable.

Source: spycatcheronline.co.ukAdded: 29 March 2007