Pretty cool idea: This Mandometer plate has a scale underneath which measures how fast weight (food) is disappearing, and compares it to a pre-set rate of consumption. If you eat too fast, it'll actually speak up to admonish you.
As embarrassing as it'd be to actually own this thing, its heart is in the right place: If you slow down your chomping, your body will register as "full" and you'll eat less. I'm not going to buy one—I don't need some uppity plate telling me that no human being should eat an entire San Francisco burrito in seven minutes—but I appreciate the effort. [My Digital Life via Boing Boing]