In November 2010, a project called "The Fun Theory" was tested in Stockholm, Sweden.
The speed of motorists was monitored, and those who obeyed speed limits, were rewarded by entering their name in a lottery. The money for this came from a portion of the money collected from those drivers who didn't obey speed limit.
During the test, the average speed dropped from 32 km to 25 km per hour.
There have been more than 200 flavors of Kit Kat in Japan since 2000, including ginger ale, creme brulee, banana. They're often bought as good-luck gifts, because Kit Kat almost sounds like "Kitto Katsu" (surely win).