These do exist in North America; however, many are attached to keychains rather than refrigerator magnets. Despite laws to the contrary, drinking and driving seem inextricably linked to the consumer.
My favorite in the DUI tool category would have to be the opener shaped more like a hooked claw. These were usually of milled aluminum and anodized in a variety of colors, and performed the same function, sans advertising.
More recently, this sinister-looking answer to traditional bottle caps has been replaced with the glove-compartment corkscrew.