Tired of licking the back of your hand and sniffing it in private? Why not produce a detector which could sample and give feedback on the activity of those nasty mouth bateria . Green for go, red for go and brush those teeth smelly-- magichan, Sep 03 2004 I just compare mine with the pet rabbit.-- skinflaps, Sep 03 2004 Halimeter; fairly widely known to exist.-- half, Sep 03 2004 The device could be lined with paint - if the paint peels off, then things are getting pretty bad.-- Ling, Sep 03 2004 I think this may be my first act of pedantry here (I'm not normally that way inclined) but shouldn't it be Bad Breath Detector in the title?-- zen_tom, Sep 03 2004 random, halfbakery