Dutch designer Hån Pham has devised the Urban Needle Box to tackle the problem of used, and possibly infected, needles lying around in public areas. A kind of pocket-sized safety box for sharps, the Zippo-lighter-sized device should be cheap to make, and looks easy to use. The concept might have just one difficulty to overcome: reminding someone who's brain is fizzing with Smack to actually put needles in it. [Yanko Design]