The Kiss Me Meter is a personal bad breath detector with LED displays that tells you if you're in a bad situation. It will also alert you if you are too drunk to drive and let you know if you should bother kissing anymore.
Implications - The meter works by detecting gases from your teeth or your stomach. Apparently, there are five levels of breath smells to watch out for. But don't worry, the device will show it on the colorful LED display.
It's a pretty outrageous gadget, but a useful one nonetheless. After all, if a date is going well, you wouldn't want to kiss without knowing how your breath is right?