Although not as long or stabby as real screwdrivers, these pocket coin screwdrivers go many places where real ones cannot (when's the last time you stuck a flat-head into your pants without getting a dirty look from your wife?). However, with these coin screwers, you can both screw in and out on the go with nothing but a pocketful of jingling to make anyone the wiser. A set of twelve can be yours for $8.50, which is the perfect price for stealthily unscrewing the train seat in front of you for subsequent laughs. [Leevalley via Book of Joe via Make]