While you can always use your high beams or horn to let that driver who just cut you off what you think of them, it's tough to tell someone behind you to stop tailgating or thank them for letting you into their lane. Enter the Driv-e-mocion, the oddly-named British product from AU-MY, Ltd. Suction-cupped to your back window, the gadget is controlled by a remote control in the driver's section and can display "Thanks," "Back Off," ":)" and ":(", giving you a few options to display your pleasure or ire to those drivers around you. Unfortunately, as neat as the Driv-e-mocion, it's out of production - for now - pending a new version. Maybe the next step will be customizable displays?

Via PC Magazine